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  • OpenCode CEO Jay V on 20x Growth in 6 Months: 13 Million Users, 7 Trillion Tokens a Day, the Anthropic Block That Backfired, and the 16-Year Road to Overnight Success

    In this episode of Y Combinator’s Lightcone podcast, Jay V, founder and CEO of OpenCode, the open-source coding agent that works with any model, walks through one of the wildest growth stories in developer tools: 650,000 monthly active users in January to roughly 13 million by June, 7 trillion tokens processed per day, and a business that went from zero to a $40 million revenue run rate in about eight months. He also tells the part almost nobody knows: the company behind this “overnight success” is a 16-year-old legal entity that applied to Y Combinator nine times before getting in.

    TLDW

    Jay V explains how OpenCode grew 20x in six months to around 13 million monthly active users and 4.6 million weekly actives, processing 7 trillion tokens a day (more than OpenRouter’s entire volume), with an inference business annualizing near $40 million plus 160,000 subscribers worth another $18 million. The inflection point came when Anthropic started blocking Claude Code subscriptions inside OpenCode by rejecting requests whose system prompt contained the words “open code,” which backfired by equating the two products and sending curious users flooding in, shortly after which OpenAI’s Codex officially supported OpenCode. The conversation covers OpenCode’s public usage data (DeepSeek Flash dominating token volume despite GLM hype), a global user base led by China at 17% with heavy usage in Indonesia, Brazil, and Vietnam, Fortune 500 companies discovering thousands of employees already using the tool, the shift from ad-based CAC to token-based CAC, the flat 24-hour GPU utilization curve that comes from serving the whole planet, the “betting the field” marketplace thesis on model commoditization, and the founder’s 16-year, nine-application journey from a Waterloo dorm through SST, OpenNext, and selling coffee over SSH to finally catching lightning.

    Thoughts

    The Anthropic block is the most instructive growth story in the episode, because it is a perfect modern Streisand effect. Anthropic had a defensible reason to stop subsidized Claude Code subscriptions from flowing through a third-party harness, but the implementation (rejecting any request whose system prompt literally contained “open code”) turned a quiet policy decision into a public endorsement. As Jay puts it, the block placed OpenCode on the same pedestal as Claude Code in the minds of developers who had never heard of it. The hosts’ Instacart comparison is apt: when Amazon bought Whole Foods, the “death of Instacart” meme drove every grocer in America into Instacart’s arms. Incumbents keep learning this lesson the hard way. You cannot block a product without simultaneously advertising that it matters.

    The deeper story is geographic. Silicon Valley talks about coding agents as if the $200-per-month power user is the market, and Jay’s data says the opposite. China alone is 17% of OpenCode’s usage, with Indonesia, Brazil, and Vietnam each carrying meaningful share, places where a frontier subscription costs more than rent. OpenCode’s $10 Go plan, running DeepSeek and GLM instead of Sonnet and Opus, is how billions of developers will actually have their first coding-agent moment. There is also a hard operational edge hiding in that distribution: because the East works while the West sleeps, OpenCode’s GPU utilization runs a nearly flat 24-hour cycle, which quietly improves unit economics in a way no single-market competitor can match. Serving the whole planet is not just a mission statement. It is a margin strategy.

    OpenCode’s neutrality is turning into one of the most valuable datasets in AI. Because the product is a harness over every model rather than a storefront for one lab, opencode.ai/data shows what developers actually run when they are spending their own money, and it routinely contradicts the Twitter narrative. GLM was supposedly eating DeepSeek’s lunch; the token-volume charts show DeepSeek Flash dipping and then bouncing right back. Users are not loyal, they are rational: they ride frontier limits until they hit caps, then switch to models cheap and fast enough to finish the day’s work. That behavioral reality, boring cost optimization rather than fandom, is what the model market actually looks like once the marketing fog clears, and only a neutral aggregator gets to see it.

    The business model inversion deserves more attention than it usually gets. In the last era, customer acquisition cost meant ads. In this one, it means tokens: the free tier is the marketing budget, spent on giving people the aha moment, and the payoff comes when a fraction of those users become whales paying per token, where OpenCode’s volume discounts become margin. This is the same funnel Anthropic and OpenAI run, except the frontier labs subsidize with investor billions while OpenCode rides the falling cost curve of open-weight models. The enterprise motion follows the same bottoms-up physics: no procurement dance, just inbound emails saying thousands of our employees are already using you, please sign the security questionnaire. That is the purest product-market-fit signal that exists.

    And then there is the 16-year overnight success. Same legal entity since 2010, same two founders from a Waterloo dorm room, nine YC applications and four interviews before acceptance in 2021, years of living with parents and running out of money, a serverless framework, a coffee shop that ran over SSH. Every “dead end” turns out to have been training: the consumer company taught metrics discipline, SST taught open source and building in public, the terminal storefront taught terminal-UI craft that made OpenCode instantly credible with the Neovim crowd. The hosts land the right conclusion: lightning did strike, but the founders spent a decade positioning the bottle. In an industry currently obsessed with six-month-old unicorns, this episode is a useful reminder that most of them are carrying more history than the headline suggests.

    Key Takeaways

    • OpenCode ended June 2026 at roughly 13 million monthly active users and 4.6 million weekly actives, close to Codex’s numbers, a 20x increase from about 650,000 monthly actives at the start of the year.
    • The platform now processes around 7 trillion tokens per day, more than OpenRouter’s total of roughly 6 trillion, up from about 300 billion per day at the beginning of the year.
    • The pay-per-token inference business, launched around late September 2025, annualizes to $31-33 million on June data and $38-40 million on the most recent week, roughly eight months from zero.
    • The subscription product launched in late February has grown to about 160,000 monthly subscribers, roughly $18 million in annualized revenue on top of inference.
    • A Codex lead engineer publicly noted that about 5% of all Codex subscribers use OpenCode as their main harness, and OpenAI officially supports Codex subscriptions inside OpenCode.
    • In the first week of January, Anthropic began blocking Claude Code subscriptions in OpenCode by rejecting any request whose system prompt contained the words “open code.”
    • Jay concedes the block made business sense (Anthropic subsidizes that usage) but says it inadvertently equated OpenCode with Claude Code and drove waves of new users to investigate the product.
    • The hosts compare it to Amazon buying Whole Foods: the “death of Instacart” meme drove every grocer in America to sign with Instacart, fueling its growth instead of killing it.
    • The founding premise is that most people in the world still have not experienced the magic of a coding agent, and frontier per-token prices put that moment out of reach for much of the globe.
    • When OpenCode launched in June 2025 the pitch was using your Claude Code subscription in a better terminal UI; by August and September the first credible open-source models (GLM, Kimi, MiniMax) arrived, roughly six months behind the frontier.
    • February 2026 marked the first four-week span in OpenCode’s data where users ran Gemini more than the Anthropic models (Sonnet plus Opus combined), which convinced the team the non-Anthropic models were ready for real work and triggered the subscription launch.
    • OpenCode publishes its usage data at opencode.ai/data, covering the Go plan where $10 a month buys access to open-source models.
    • DeepSeek Flash leads token volume per day, with the two DeepSeek models plus GLM as the top three, despite social media chatter suggesting GLM had overtaken DeepSeek.
    • By unique users the top models run DeepSeek Flash at about 38,000, DeepSeek Pro at 31,000, and GLM 5.2 near 30,000.
    • A key usage pattern: as users approach daily or weekly limits on premium models, they switch to very cheap models like DeepSeek Flash to finish their work, extending how much coding-agent time their budget buys.
    • Speed matters too: some open models are hosted with far higher tokens-per-second than alternatives, making the agent feel near real time, and users perceive quality niches, like GLM 5.2 being better at front-end design.
    • China is OpenCode’s largest market at 17% of usage, which the hosts note may make it the only YC company in history with meaningful usage in China, partly because Chinese developers want to run Chinese models and OpenCode gives them that choice.
    • Developing countries are huge: Indonesia at 4% of traffic, Brazil at 5%, plus Vietnam and similar markets where a $200-a-month Claude Code subscription is prohibitively expensive.
    • The US, which the team was not even targeting with the Go plan, is growing strongly anyway, which Jay reads as a broader vibe shift toward token budgeting even among Americans.
    • Large US companies with effectively unlimited token budgets also adopted OpenCode early because they did not want to be locked into a specific model or harness.
    • Dozens of forward-leaning Fortune 500 companies have significant OpenCode footprints, often discovered when the company itself emails saying thousands of employees are already using it.
    • Enterprise inbound has inverted the old SaaS procurement dance: companies beg OpenCode to fill out security questionnaires so they can officially use a product their engineers already adopted.
    • Enterprise pull comes in four flavors: officially blessing developer usage, extending the tool to non-technical employees, embedding the agent loop inside their own products, and managing token spend by routing teams to cheaper models.
    • One enterprise asked for deep visibility into exactly what every employee does with the tool, which the team flagged as a should-we-even-build-this question.
    • Ramp built a Slack bot running OpenCode’s embeddable server (the agent loop that works behind the UI) before OpenCode had built anything similar internally, publishing a blog post about it in December.
    • OpenCode is architected as a two-part product: the terminal UI you interact with, and a separately embeddable server that runs the agent loop and calls the LLM.
    • The new CAC is tokens, not ads: the free tier exists to give people the magic moment, the subscription converts them to real work, and whales paying per token feed directly into margin via OpenCode’s volume discounts on inference.
    • The episode references Dylan Patel’s podcast claim that Anthropic reached roughly $50 billion annualized revenue at around 70% margin in Q2, proof that the subsidize-then-harvest funnel can cross into profitability.
    • Global usage produces a nearly flat 24-hour GPU utilization curve (the East works while the West sleeps), improving unit economics versus competitors serving one region.
    • Jay describes OpenCode as a marketplace that showcases model diversity: competition among labs benefits consumers, while vendor lock-in mostly benefits vendor margins.
    • OpenCode is now the largest customer by token volume for most open-source model labs, making the relationship symbiotic: the strategy is not picking a winning lab but betting the whole field.
    • Every bump in OpenCode’s monthly actives traces back to a corresponding release in the open-source model market, making its growth a proxy for open-model progress.
    • The name OpenCode was deliberate positioning: when a market has one or two dominant players, the rest coalesces around an open alternative, and whoever occupies that position first is very hard to displace.
    • To support 70+ models and providers at launch, the team built models.dev, an open-source database of models and providers that Jay calls probably the best such dataset in the world.
    • The origin moment: when Claude Code appeared in February 2025, the team (Neovim users unimpressed by its terminal UI) decided to build a coding agent that met the standard of modern terminal tools, credibility that resonated instantly with the core developer audience.
    • The team had form here: co-founder Dax had built terminal.shop, a complete storefront for buying coffee over SSH, the kind of eccentric-taste project the hosts argue pulls founders toward outlier outcomes.
    • The company is one 16-year-old legal entity, incorporated in 2010, founded by Jay and his college roommate Frank after a Waterloo co-op term convinced Jay he never wanted a normal job.
    • Jay applied to YC nine times between 2016 and 2021 with four interviews before getting in, with his first interview dating back to the era when Paul Graham ran them and an Airbnb founder was hanging around the waiting room.
    • The 2021 YC idea was a serverless platform, Heroku for AWS, which became SST, the team’s first big open-source project and the on-ramp to building in public.
    • Building in public became core identity after co-founder Dax observed that if all your code is public and you work in public, staying silent about it is a disservice to the product; the community now follows the company like a reality TV show.
    • Jay credits survival to stubbornness, visible forward progress, and cheap burn (living with parents after running out of money), while warning founders: don’t try this at home.
    • The hosts’ framing of the whole arc: it took ten years of grinding to get to zero-to-$30-million in eight months, and catching lightning in a bottle requires positioning the bottle correctly first.

    Detailed Summary

    The Numbers: 20x in Six Months

    OpenCode began the year around 650,000 monthly active users and ended June near 13 million, with 4.6 million weekly actives that put it in the same conversation as OpenAI’s Codex. Token throughput grew from roughly 300 billion per day to 7 trillion, a volume larger than all of OpenRouter. The money followed two tracks: a pay-per-token inference business launched in the fall that annualizes near $40 million on recent weeks, and a subscription product launched in late February that reached 160,000 monthly subscribers and about $18 million annualized. Codex officially supporting OpenCode, with around 5% of Codex subscribers choosing it as their harness, added a second frontier on-ramp right as the Anthropic controversy peaked.

    The Anthropic Block That Backfired

    Using a Claude Code subscription inside OpenCode was one of the most common usage patterns until Anthropic moved to stop it in early January, rejecting requests whose system prompt mentioned “open code.” Jay is gracious about the logic (Anthropic subsidizes subscription usage and wants it inside its own product) but the effect was the opposite of containment. The block put the scrappy open-source harness on the same pedestal as the category leader, told every developer who had not tried it that it was worth investigating, and kicked off the year’s 20x run. The hosts draw the Instacart parallel: a supposed death blow that functioned as the best marketing campaign the company never paid for.

    A Global User Base the Valley Doesn’t See

    The product premise is that the coding-agent aha moment is a once-a-generation experience most of the world cannot afford at frontier prices. The Go plan ($10 a month for open-source models) was built for that global audience, and the geography shows it: China leads at 17%, with Indonesia at 4%, Brazil at 5%, and Vietnam prominent, markets where $200 a month is simply not a consumer price point. Two surprises followed. Chinese developers use OpenCode partly to run their own country’s models, which no US-locked product lets them do. And the US, never the target for Go, is growing fast anyway, which Jay reads as the token-budgeting vibe shift reaching even the throw-money-at-it crowd, helped by moments like GLM 5.2’s popularity making the plan the easiest way to try it.

    What the Usage Data Really Shows

    OpenCode publishes per-model usage at opencode.ai/data, and because every data point is an actual end user rather than aggregated API traffic, it is arguably the cleanest picture of what working engineers really run. DeepSeek Flash dominates token volume, the two DeepSeeks plus GLM hold the top three, and the market-share graph shows DeepSeek dipping when GLM launched and then bouncing back, contradicting the Twitter narrative of a GLM takeover. By unique users, Flash leads at 38,000 with DeepSeek Pro at 31,000 and GLM 5.2 near 30,000. The behavioral driver is pragmatic: cheap, fast models let users keep working after they hit premium limits, hosted speeds make some models feel real time, and perceived niches (GLM for front-end design) steer specific workloads.

    Enterprises Arriving Through the Back Door

    Before the open-model wave, companies adopted OpenCode to avoid lock-in to any single model or harness. Now dozens of forward-thinking Fortune 500 companies have significant footprints, and the procurement process has inverted: instead of sales outreach, OpenCode receives DMs saying a few thousand employees are already using the product, please sign the security questionnaire, and often, please don’t tell anyone. Once inside, enterprises pull in predictable directions: extend access to non-technical staff, embed the agent loop in their own products, and manage token spend by restricting expensive frontier models to teams that need them. Ramp exemplified the embedding path, running a Slack bot on OpenCode’s server component before OpenCode itself had tried it. One request, total visibility into employee activity, raised the harder question of what the company is willing to build.

    Token Economics: CAC Is Now Paid in Tokens

    The episode’s sharpest business insight is that customer acquisition cost has migrated from ads to tokens. Becoming skilled enough with coding agents to justify heavy spend is itself expensive, a chasm most individuals and companies cannot cross unaided. Anthropic and OpenAI solve this by subsidizing subscriptions until a percentage of users become whales, and per Dylan Patel’s numbers cited in the episode, that funnel has carried Anthropic to roughly $50 billion annualized at 70% margins. OpenCode runs the same funnel without frontier-scale subsidies: the free tier delivers the magic moment, the $10 plan makes real work affordable on open models, and whales paying per token convert OpenCode’s volume discounts into margin. The flat 24-hour GPU utilization curve from serving every timezone compounds the advantage.

    Betting the Field: The Marketplace Thesis

    Jay frames OpenCode as a marketplace where users pick models by attribute and cost, which keeps labs honest and passes competitive gains to consumers instead of vendor margins. Every bump in OpenCode’s growth traces to a release in the open-model market, so the company is explicitly not picking a winning lab; it is betting the field. That bet has made OpenCode the largest customer by token volume for most open-source model labs, a symbiosis where each side needs the other. On commoditization, Jay’s view is nuanced: the intelligence market is so large that labs will carve defensible niches along the quality-cost-performance axes, the way DeepSeek deliberately owns the cost corner. The positioning strategy has deep roots: as with the team’s earlier OpenNext project, when a market has two dominant players, the rest coalesces around an open alternative, and OpenCode raced to become that default, building models.dev along the way just to support 70+ providers at launch.

    Sixteen Years to Overnight Success

    The backstory reframes everything. Jay started the company after a discouraging Waterloo co-op term in 2006-2007, incorporated with college roommate Frank in 2010, and spent the next decade shipping products that did “reasonably well” while applying to YC nine times across 2016-2021, with four interviews, all as the same legal entity, the same founders, and a rotating cast of ideas. His first YC interview was with Paul Graham, in a waiting room shared with an Airbnb founder. Acceptance finally came in 2021 with the serverless platform that became SST, the team’s gateway into open source and building in public, a practice pushed by YC’s Dalton and crystallized by co-founder Dax’s observation that public code deserves public storytelling. When Claude Code landed in February 2025, the team’s terminal-UI taste (honed on projects as eccentric as coffee-over-SSH) told them exactly what to build. The hosts close on the honest version of the lightning-in-a-bottle myth: ten years of grinding taught the team consumer metrics, open source, marketing, and positioning, so when the strike came, the bottle was already in place.

    Notable Quotes

    “Most people in the world still haven’t experienced the magic of a coding agent.”

    Jay V, on the founding premise of OpenCode

    “You really know you have product market fit when like enterprises are bugging you to sign the security agreement so they can use your product.”

    Lightcone host, on OpenCode’s inverted enterprise sales motion

    “It’s not that we’re picking a winner in terms of a model lab. We’re just betting the field. We just think the rest of the field is going to do well.”

    Jay V, on OpenCode’s strategy toward the model market

    “With these open-source models, we’re the largest customer for most of them.”

    Jay V, on OpenCode’s token volume relative to open-model labs

    “When you’ve got a dominant or in this case two dominant players in the market, the rest of the market coalesces around an open alternative. And picking that position ends up being really valuable because if you pick it, it’s very hard for somebody else to displace you.”

    Jay V, on the deliberate positioning behind the OpenCode name

    “This is just an unprecedented market, like the market for intelligence has not existed before, everybody should be thinking in a positive-sum grow-the-pie mentality.”

    Lightcone host, on why labs should welcome OpenCode’s growth

    “Look, you know, all your code is public. You work basically in public. If you don’t talk about it publicly, you’re probably doing yourself a disservice and your product a disservice.”

    Jay V, recounting co-founder Dax’s case for building in public

    “It was really more a journey that took 10 years to get to 0 to 30 million in 8 months.”

    Lightcone host, reframing the overnight-success narrative

    “To catch the lightning in the bottle, you actually like have to sort of position the bottle correctly and be ready for it and know what to do with it.”

    Lightcone host, closing the episode on preparation meeting luck

    Watch the full conversation here.

    Related Reading

    • OpenCode the open-source coding agent discussed throughout the episode, including its public usage data.
    • models.dev the open-source database of AI models and providers the team built to support 70+ providers at launch.
    • SST the serverless framework that got the company into YC and established its open-source, build-in-public roots.
    • Terminal the coffee-over-SSH storefront that proved the team’s terminal-UI chops before OpenCode existed.
    • Y Combinator the accelerator behind the Lightcone podcast, which Jay applied to nine times before getting in.

  • Jensen Huang Joins X and His First Post Is a Manifesto: Inside the Open Weights and American AI Leadership Letter Signed by NVIDIA, Microsoft, Meta, and 20+ Tech Giants

    Jensen Huang, the CEO of NVIDIA and arguably the most influential person in the AI hardware world, has never been a social media guy. That changed on July 24, 2026, when he joined X and published his first-ever post. He did not use it to celebrate a product launch or a stock milestone. He used it to share a policy manifesto: “Open Weights and American AI Leadership,” a joint letter signed by roughly 25 organizations including NVIDIA, Microsoft, Meta, IBM, Dell Technologies, Hugging Face, Mistral, Mozilla, The Linux Foundation, Palantir, Perplexity, Replit, ServiceNow, Andreessen Horowitz, and Y Combinator, urging U.S. policymakers not to strangle open-weight AI models with premature restrictions.

    TLDR

    Jensen Huang broke his lifelong social media silence to amplify a coalition letter arguing that America’s AI leadership depends on a thriving open-weight ecosystem, not just one frontier model. The letter draws a straight line from the open-source software movement of the 1980s to today’s AI debate, and makes four core arguments: open weights expand access to the AI economy for startups, universities, and businesses that cannot train frontier models from scratch; they strengthen competition across models, chips, clouds, and applications; they give customers control over their data and protection from vendor lock-in; and, most provocatively, they make AI safer, because transparency lets thousands of researchers find and fix vulnerabilities while closed models concentrate risk into a few single points of failure. The letter acknowledges that released weights can never be recalled, defends distillation as a legitimate development technique that should not be swept into anti-misappropriation rules, and asks policymakers to expand compute access, invest in shared datasets and evaluation tools, and keep the frontier plural. Notably absent from the signatory list: OpenAI, Anthropic, and Google.

    Thoughts

    The medium is the message here. Jensen Huang has run NVIDIA for over three decades without needing a personal X account, and his debut post could have been anything. He chose a policy letter. That tells you how high the stakes of the open-weights fight have become in Washington. When the CEO whose chips power essentially all frontier AI decides the most valuable use of his first post is lobbying, the open-versus-closed question has officially moved from Twitter discourse to the center of American industrial policy.

    Follow the incentives and the signatory list makes perfect sense. NVIDIA wins when AI runs everywhere, on every cloud, in every factory, hospital, and government data center, and open weights are the vehicle for that diffusion. Meta has bet its entire AI strategy on open models. Hugging Face, Mistral, and the Linux Foundation are institutionally committed to openness. Microsoft signing is the interesting one, given its billions invested in OpenAI, and it suggests Redmond sees its future in selling infrastructure for all models rather than defending any single lab’s moat. Meanwhile the two most prominent frontier labs built on closed weights, OpenAI and Anthropic, are conspicuously not on the letter, and neither is Google. The dividing line is not ideology. It is business model.

    The safety argument is the letter’s boldest move. The standard policy assumption has been that closed models are the responsible choice and open weights are the risky one. The letter flips that: closed models are single points of failure that can be breached or fail invisibly, while open weights let a global community red team, benchmark, and patch. This is a direct port of the “given enough eyeballs, all bugs are shallow” argument from open-source software, and it worked historically. Linux and open cryptography did prove more trustworthy than security through obscurity. Whether the analogy fully holds for AI models, where a vulnerability might be a capability rather than a bug, is the real debate, and the letter mostly asserts the analogy rather than proving it. The honest concession is there, though: once weights are released, they are beyond anyone’s control, forever.

    The distillation paragraph is the tell for what this letter is actually about. Since Chinese labs like DeepSeek demonstrated that frontier-adjacent capability can be built cheaply, partly by learning from the outputs of existing models, there has been growing appetite in Congress to restrict distillation itself. The coalition is drawing a line: punish unlawful extraction from closed models through targeted legal frameworks, but do not ban a technique that virtually every AI team on earth uses for model improvement and evaluation. The unstated geopolitical subtext runs through the whole document. If America restricts its own open models, the world does not stop using open models. It builds on Chinese ones, and the default AI stack for most of humanity gets set in Hangzhou instead of Santa Clara.

    There is also a genuinely good economic point buried in the access section that deserves more attention than the politics. Frontier models are expensive, and routing every task through one is not economically sustainable when AI scales to billions of everyday operations. Open weights let organizations match the right model to the right job at the right cost, reserving frontier capability for frontier problems. That discipline, more than any single benchmark race, is what makes AI diffusion into ordinary businesses actually pencil out. Huang’s own post distilled the balanced version of the thesis into one line: the world needs both frontier closed models and frontier open models. That is probably the correct position, and it is worth noticing that the people who signed this letter and the people who did not both agree AI is the most consequential technology of the era. They just disagree about who should hold the keys.

    Key Takeaways

    • Jensen Huang joined X on July 24, 2026, and used his first-ever post to share the coalition letter “Open Weights and American AI Leadership” rather than any NVIDIA product or personal news.
    • His post read in part: “AI will transform every industry, power every company, and be built by every country. Open models strengthen safety and cybersecurity, accelerate innovation and diffusion, and enable sovereignty.”
    • The letter is signed by roughly 25 organizations: NVIDIA, Microsoft, Meta, IBM, Dell Technologies, Hugging Face, Mistral, Mozilla, The Linux Foundation, Palantir, Perplexity, Replit, ServiceNow, CrowdStrike, Box, Black Forest Labs, Arcee AI, Arena, Emergence Capital, Telnyx, Reflection, Mariana Minerals, American Innovators Network, Andreessen Horowitz, and Y Combinator.
    • OpenAI, Anthropic, and Google are notably absent from the signatory list, and the split tracks business models: companies that profit from AI diffusion signed, companies whose moat is closed frontier models did not.
    • Open-weight models are defined in the letter as AI models that anyone can download, inspect, modify, and run on their own infrastructure.
    • The letter opens with a historical analogy: 1980s open-source pioneers challenged the belief that software required tight corporate control, and open source now underpins most of the internet, the U.S. military, and federal research.
    • The central thesis is that U.S. AI leadership will be judged not by one frontier model but by whether America builds an open ecosystem that diffuses AI into every sector of the economy.
    • Argument one is access: startups, established businesses, universities, and public institutions can build on advanced models without training one from scratch or paying frontier-model prices for every task.
    • The letter frames cost discipline as the key to sustainable AI economics: reserve frontier-scale capability for genuine frontier problems and run efficient specialized models everywhere else, because AI usage is heading toward billions of everyday tasks.
    • America wins the AI era, per the letter, by diffusing AI into factories, hospitals, farms, classrooms, and main street businesses, not by concentrating it.
    • Argument two is competition: open weights create rivalry not just among model developers but across chips, clouds, applications, and services, which drives down costs and spreads the gains.
    • Argument three is customer control: organizations investing in AI want assurance they will not be locked into a single provider or lose the capabilities they build over time.
    • Open weights let organizations control their own data, adapt models to their needs, deploy wherever business requirements demand, and own the value they create through self-improving models and accumulated knowledge.
    • The letter concedes the core risk honestly: once weights are released they are beyond the original developer’s control, and modified versions are difficult to trace or reverse.
    • Its answer to that risk is defensive parity: in a world where attackers use advanced AI, defenders need comparable open models to detect, simulate, and respond to threats.
    • Argument four inverts the standard safety assumption: relying solely on closed models is not inherently safe because they can be breached, misused, or fail in ways outsiders cannot detect.
    • Concentrating advanced AI behind a few closed models creates single points of failure, weakens competition, and leaves critical technology in the hands of a few providers.
    • The letter argues openness enables rigorous benchmarking, red teaming, and protections tied to real demonstrated harms, rather than assuming closed systems are safer by default.
    • The transparency-beats-obscurity argument is borrowed directly from open-source security history, where community scrutiny made software like Linux more trustworthy, not less.
    • The policy asks: expand compute access for startups and researchers, invest in shared training assets like datasets, tools, and evaluation frameworks, and avoid premature restrictions that stifle competition or push innovation overseas.
    • “Keeping the frontier plural” is the letter’s phrase for ensuring no single lab or model becomes the sole locus of advanced AI capability.
    • The distillation section is the most legislatively specific part: it defends using one model’s outputs to help train or improve another as a widely used, legitimate technique for model improvement, evaluation, and validation.
    • The coalition wants unlawful extraction of value from closed models addressed through targeted legal and commercial frameworks, not sweeping restrictions on distillation itself.
    • The distillation defense lands in the shadow of DeepSeek and other Chinese labs, whose cheap, capable open models triggered calls in Washington to restrict the technique.
    • The unstated competitive logic: if the U.S. restricts its own open models, developers worldwide will build on Chinese open models instead, ceding the default global AI stack.
    • Sovereignty is a recurring frame, both national and organizational: open weights let countries and companies run AI on their own infrastructure with their own data, a pitch Huang has made to governments for years.
    • Huang’s bottom line is explicitly both-and, not either-or: “The world needs both frontier closed models and frontier open models.”
    • The letter closes with an optimistic framing: with the right choices, open-weight AI can expand opportunity, strengthen competition, extend American technological leadership, mitigate risk, and share the benefits broadly.

    Detailed Summary

    The Debut: Why Jensen Huang Joining X Matters

    Huang has been one of the most visible executives on earth for years, keynoting CES and GTC to stadium crowds, yet he has never maintained a personal social media presence. His arrival on X on July 24, 2026 was itself news, and the content of the first post made it a statement. Rather than an introduction or a product plug, he shared the coalition letter and wrote that AI will transform every industry, power every company, and be built by every country, and that open models strengthen safety and cybersecurity, accelerate innovation and diffusion, and enable sovereignty. Microsoft CEO Satya Nadella amplified the same letter the same day. The coordinated rollout, fronted by the two most valuable companies in the AI supply chain, was designed to put maximum weight behind a single policy position at a moment when Congress is actively weighing how to regulate open models.

    The Open-Source Precedent

    The letter’s opening argument is historical. In the 1980s, open-source pioneers challenged the prevailing belief that software would only advance if companies kept tight control over their code. The movement they built now supports most of the internet and underlies systems used by the world’s largest technology companies, the U.S. military, and federal agencies doing scientific research and cybersecurity. The letter’s framing is that open source did more than lower costs; it created a shared foundation of knowledge on which generations of American engineers built. The United States, it argues, faces the same fork in the road with AI, and the lesson of the last forty years points toward openness.

    Access, Competition, and Customer Control

    The economic core of the letter is three stacked arguments. First, access: open weights let startups, businesses, universities, and public institutions build on advanced models without training their own or paying frontier prices for every task. The letter is unusually specific about the economics, arguing that matching the right model to the right job at the right cost is what will make AI sustainable as usage scales into the billions of everyday tasks. Second, competition: because anyone can build on open weights, rivalry emerges across every layer of the stack, models, chips, clouds, applications, and services, which spurs innovation and drives down prices. Third, control: organizations fear vendor lock-in and losing the capabilities they build. Open weights let them keep their data, adapt models to their needs, deploy anywhere, and own the accumulated value, which the letter ties to both American sovereignty and prosperity.

    The Safety Argument Turned Upside Down

    The letter does not dodge the standard objection. It concedes that open weights carry real and distinct risks: once released, weights are beyond the developer’s control, and modified versions are hard to trace or reverse. But it argues the right response is not prohibition. Defenders facing AI-equipped attackers need comparably capable models to detect, simulate, and respond to threats. Then it goes further, claiming openness may be one of the most important paths to AI safety. Closed models can be breached, misused, or fail invisibly, and concentrating capability behind a few of them creates single points of failure. Open models allow a broad community to examine behavior, find vulnerabilities, develop safeguards, and improve them over time, with rigorous benchmarking, red teaming, and protections tied to real demonstrated harms. The explicit analogy is to open-source software proving that transparency can be more secure than obscurity.

    The Distillation Defense

    The most pointed policy content is a warning against conflating legitimate model-development techniques with misappropriation. Distillation, using one model’s outputs to help train or improve another, is defended as a widely used technique for model improvement, evaluation, and validation, standing in a long tradition of learning from and building on existing technology. The letter acknowledges that unlawful extraction of value from closed models raises legitimate concerns, but insists those be handled through targeted legal and commercial frameworks rather than sweeping restrictions. This is the paragraph aimed most directly at pending legislative ideas, and it is the one where the interests of the signatories and the non-signatories diverge most sharply, since distillation is precisely how smaller and open models close the gap with closed frontier systems.

    Who Signed, and Who Did Not

    The signatory list spans chipmakers (NVIDIA), hyperscalers (Microsoft), open-model champions (Meta, Mistral, Black Forest Labs, Arcee AI, Reflection), infrastructure and enterprise players (IBM, Dell, Box, ServiceNow, CrowdStrike, Telnyx, Palantir), the open-source institutional world (Hugging Face, Mozilla, The Linux Foundation), and the venture ecosystem (Andreessen Horowitz, Y Combinator, Emergence Capital), plus Perplexity, Replit, Arena, Mariana Minerals, and the American Innovators Network. The absences are as informative as the signatures. OpenAI, which released its gpt-oss open-weight models in 2025 but remains fundamentally a closed frontier lab, did not sign. Neither did Anthropic nor Google. The letter thus formalizes a fault line that has been visible for years: the diffusion coalition versus the frontier labs, with the U.S. government as the audience both sides are playing to.

    The Policy Ask

    The letter closes with concrete recommendations. Policymakers should expand access to compute for startups and researchers, invest in shared training assets including datasets, tools, and evaluation frameworks, and keep the frontier plural by avoiding premature restrictions on open models that would stifle competition or drive innovation overseas. It also calls for attention to strong application layers that expand sovereign use of AI across the economy. The final paragraph is pure optimism: with the right choices, the age of AI can be one of broadly shared prosperity, and the United States should lead in building that future.

    Notable Quotes

    “For my first post, I’m sharing a letter Nvidia signed on why open models matter. AI will transform every industry, power every company, and be built by every country. Open models strengthen safety and cybersecurity, accelerate innovation and diffusion, and enable sovereignty. The world needs both frontier closed models and frontier open models.”

    Jensen Huang, in his debut post on X, July 24, 2026

    “Our AI leadership will be judged not by one frontier AI model, but by whether the United States builds a strong, open ecosystem that diffuses into every sector.”

    The coalition letter, stating its central thesis

    “America wins the AI era by diffusing it into the workflows of factories, hospitals, farms, classrooms, and main street businesses.”

    The coalition letter, on where the AI race is actually decided

    “Once released, the weights are beyond the original developer’s control, and modified versions are difficult to trace or reverse.”

    The coalition letter, conceding the irreversibility risk of open weights

    “Relying solely on closed models is not inherently safe: they can be breached, misused, or fail in ways that outsiders cannot detect.”

    The coalition letter, inverting the standard safety assumption

    “Just as open-source software demonstrated that transparency can be more secure than obscurity, AI safety may depend on giving more people the ability to test and strengthen the models on which society relies.”

    The coalition letter, drawing its core analogy to open-source security

    “Distillation, or the practice of using one model’s outputs to help train or improve another, is a widely used technique for model improvement, evaluation, and validation.”

    The coalition letter, defending the technique legislators have discussed restricting

    “That future is worth building, and the United States should lead in building it.”

    The coalition letter’s closing line

    Read the full letter here: Open Weights and American AI Leadership (PDF), and see Jensen Huang’s first post on X.

    Related Reading

  • Jensen Huang Says the AI Apocalypse Is ‘Complete Nonsense’: NVIDIA’s CEO on AI Jobs, China, Open Source Models, the AI Bubble, and the Trillion-Agent Future (Axios Behind the Curtain)

    Sitting on the floor of a brand new chip factory in Fort Worth, Texas, NVIDIA CEO Jensen Huang gave Axios reporter Mike Allen one of his most combative and quotable interviews yet. In this episode of Behind the Curtain, the head of the world’s most valuable company dismisses AI doom scenarios as “complete nonsense,” argues that AI is creating jobs rather than destroying them, defends Chinese open source models like Kimi and DeepSeek, explains why the AI build out is not a bubble yet, and calls for Anthropic’s most powerful model to be made available to everyone.

    TLDW

    Huang covers the full sweep of the AI moment: Chinese export control threats and why he wants open research flows in both directions, why the world needs both closed models (Anthropic, OpenAI) and open models (Kimi, Qwen, DeepSeek, NVIDIA’s own Nemotron), why Wall Street misread the Kimi selloff exactly as it misread DeepSeek, the sovereign AI argument that no company or country should “outsource its alpha,” his evidence that AI is increasing jobs for radiologists, paralegals, and manufacturing workers, a sustained attack on AI doomers and the “made up” narratives of singularity, simulation, and machine consciousness, the CapEx-heavy economics of manufacturing intelligence via tokens, his claim that the bubble is not coming in the next five years because physical constraints (chips, memory, power, construction workers) are pacing the build out, his warm relationship with President Trump and his warning against knee-jerk regulation, his position that Claude Mythos should be available to all users, the coming era of a trillion AI agents, the “ChatGPT moment” for robots having already arrived, and closing life lessons on pain, suffering, practice, immigration, and why he refuses to wear a watch because “now is the most important time.”

    Thoughts

    The first thing to hold in mind while watching this: every single position Huang takes, without exception, maps to selling more GPUs. Open models are good (more diffusion, more compute). Closed models are also good (more services, more compute). Chinese models are good (more use, more compute). Doom talk is bad (fear slows adoption, which slows compute). The bubble is far away (keep buying compute). That perfect alignment between worldview and order book does not make him wrong, but it means his arguments deserve scrutiny on the merits rather than deference to his position. He is the most effective anti-doomer in the industry partly because he is the person with the most to lose if the world gets scared.

    That said, his strongest material is empirical, and it lands. The radiologist example is a direct rebuttal to one of the most famous predictions in AI history, Geoffrey Hinton’s 2016 claim that we should stop training radiologists. Huang’s version of events, that automating the scan-reading task let radiologists see more patients and demand for them grew, is a textbook case of what economists call the Jevons effect applied to labor. Whether his specific numbers (20 percent more radiologists, 10 percent more paralegals, 50 percent more manufacturing jobs) survive fact-checking, the structural argument that automating a task can grow the profession around it is historically well supported, and it is the single most useful reframe in the interview: your job is not your task, and when the task gets automated, the purpose remains.

    The open source security argument is the most intellectually serious part of the conversation and the one most directly aimed at his own customers. Huang praises Anthropic and OpenAI as businesses in one breath and then dismantles the “closed models are safer” position in the next: Linux runs the world’s digital infrastructure precisely because millions of people can inspect and harden it, and a world defended by one closed model is a world with a single point of failure. His call for “massively distributed, diverse defense” via open models in the hands of cybersecurity experts everywhere is a real policy position with real stakes, and it puts him closer to Meta’s historical stance than to the labs he supplies.

    The bubble section is where the skeptic should lean in. Allen hands him the most famous cursed phrase in financial history, “this time is different,” and Huang takes the bait enthusiastically: it is different, he says, because the demand is industrial rather than cyclical. Every bubble in history was justified by exactly this argument, including the railroads and the dot-com fiber build out that Huang implicitly invokes as precedent. But his supply-side observation deserves weight: bubbles pop when supply overshoots demand, and right now everything (chips, memory, packaging, power, land, construction labor) is short. A market that cannot build fast enough is at least not overbuilt yet. His own concession that “the bubble will come someday” and his refusal to vouch for years five through ten is more honest than the rest of the answer.

    Finally, notice the tension he never resolves. He says warnings about AI’s power are “well heeded,” that safety is the leaders’ responsibility, and that Anthropic must fix jailbreaks fast. He also says consciousness, singularity, and existential risk are “all made up,” and shrugs off the referenced Mythos jailbreak with “everything was fine, you and I are here having a conversation.” Those two postures, take the technology seriously enough to harden it but never seriously enough to fear it, are held together mostly by confidence. It is a bet that capability and controllability scale together. The doomers he mocks are making the opposite bet, and nothing in this interview actually settles which one is right.

    Key Takeaways

    • On reports that Chinese regulators may tighten export controls on AI models and semiconductors to keep them from the West: Huang hopes it does not happen, notes half the world’s AI researchers are Chinese, and says both sides should de-escalate and let the technology advance.
    • He opposes any US ban on Chinese models like Kimi: American companies should absolutely be allowed to use them, because downloaded open models can be fine-tuned, guardrailed, and run inside secure sandboxes and harnesses, and the “back door” fear is a misconception.
    • The world needs both closed and open models: use closed services (Anthropic, OpenAI) as much as possible because they are excellent and convenient, but science, cybersecurity, and sovereignty require open models.
    • Regulate applications of AI (medicine, transportation, autonomous vehicles), not the underlying technology, which is dual use and should advance as fast as possible.
    • NVIDIA’s China sales are “approximately zero today” and he has told investors to expect none; he would consider it an honor to return if both governments allow it.
    • The market misunderstood DeepSeek and is now misunderstanding Kimi the same way: great open models, wherever they come from, drive more AI use, which drives more NVIDIA computers, more data centers, and more services.
    • Open models are not adversarial to closed models: the most likely customer to upgrade to Anthropic or OpenAI is someone who already uses AI and wants it more convenient and better.
    • NVIDIA’s Nemotron open model exists for companies that must build their own AI for sovereignty, regulatory, privacy, or IP reasons. “We don’t have to be the frontier. We have to be at the frontier.”
    • The large language model is the brain; a harness (he names OpenClaw and Claude Code as examples) turns it into a working agent. With the right harness, Nemotron can be world-class for specific skills.
    • Cheap or free open source tokens are “fantastic” for the proprietary labs: free AI grows the population of people who realize they need AI, and running even a free model yourself usually costs more than renting a service.
    • Echoing the viral Palantir CEO interview: “Nobody should outsource their alpha.” Companies and countries should rent AI wherever they can but must build their own AI for domain-specific, proprietary, sovereign, secret, or regulated work.
    • For non-differentiating work (marketing automation, legal department productivity), outsource to the frontier labs as much as possible.
    • Nothing AI has done has truly surprised him; what society needs to realize is that automating tasks is increasing the number of jobs the world needs.
    • His jobs evidence: radiologists up roughly 20 percent because AI-automated scan reading lets them see far more patients; paralegals up roughly 10 percent for the same reason; US manufacturing jobs up roughly 50 percent in recent years because AI data centers require industrial might.
    • On the demonstrated ability of Anthropic’s Mythos to break into hardened systems: “it surprised me that people were surprised.” An AI that can write and debug software can necessarily find vulnerabilities; the same capability powers cyber defense.
    • His security architecture argument: one single model is one single point of attack and failure. Open models in the hands of cybersecurity experts worldwide create “massively distributed, diverse defense,” the same reason Linux is trustworthy.
    • Whether China has “caught up” does not matter: the race-with-a-finish-line framing is wrong, China manufactures more AI researchers than the rest of the world combined, holding China back is ill-conceived, and neither side can hold back the other.
    • “AI is not going to destroy all of our jobs. Someone who uses AI is going to take our jobs.” The biggest risk to the US is scaring industries and society out of adopting AI.
    • On doomer AI CEOs: warning is fine, warning with a solution is better, and making things up is “absolutely inappropriate.” End-of-humanity and half-of-jobs-destroyed claims are “complete nonsense” contradicted by all the evidence.
    • Asked why Asia loves him while America is anxious: “the doomers spend too much time theorizing about these science fiction outcomes, maybe it makes them sound smart.”
    • OpenAI and Anthropic are not in trouble from Chinese competition: “zero possibility” China runs US companies off the road, both labs are thriving, and their IPOs will be the most successful in human history.
    • On chip stocks down 18 percent after Kimi dropped: free AI is great for hardware, chips, and data centers; the market got it wrong with DeepSeek (NVIDIA fell about 30 percent) and is getting it wrong again.
    • AI cannot have peaked because diffusion into society and industry has barely begun; useful AI has finally arrived, and useful AI is profitable AI, citing coding agents companies happily pay hundreds of millions a year for.
    • The new IT industry is CapEx heavier than software because intelligence must be manufactured: machines produce the tokens behind every answer, image, protein, and robot maneuver, and the resulting productivity will more than pay for the build out.
    • A token is an embedding of knowledge and intelligence, and unlike pi it gets smarter over time; smarter tokens are more valuable, which is why token economics keep improving.
    • On the bubble: “The bubble will come someday. It’s just not today.” Very unlikely in the next five years; five to ten years depends on how fast the industry can build.
    • The build out is constrained in every direction (chips, memory, land, power, construction workers), and that constraint is healthy: it pushes out the day supply exceeds demand.
    • This cycle is “industrial-driven,” not seasonal or consumer-demand-driven: the world needs a new intelligence infrastructure layer on top of energy, internet, roads, and railroads, and the semiconductor industry needs to be 5 to 10 times larger within ten years.
    • He is not worried about customers issuing hundreds of billions in debt to buy his chips: these companies generate enormous cash, the compute platform shift is real, and the ROI question has been answered because AI is now demonstrably profitable.
    • He would use Kimi himself, with fine-tuning, guardrails, sandboxing, and access control, the same way the world already trusts open source software like Linux.
    • On Trump: they text, the president “remembers everything” including H20, H200, Blackwell, and Rubin, and the Fort Worth factory they are sitting in is a direct result of their first conversation about reindustrializing America.
    • His warning to the administration: do not over-correct based on science fiction narratives about AI consciousness; talk to many CEOs and scientists, not one or two, and take time to be informed before regulating.
    • On the government taking an equity stake in NVIDIA: unnecessary, because the US already has a stake via $10 billion in taxes paid last year, job creation, and the stock market holdings of most Americans.
    • Claude Mythos should “absolutely be available to everyone,” not just selected institutions; it is Anthropic’s job to harden it and patch jailbreaks fast, and he notes that when it was jailbroken “everything was fine.”
    • On distillation of closed models: learning from other intelligence is fundamental (soon the internet will be 99 percent AI-generated content anyway), but violating terms of service or privacy is not okay and should be handled through existing legal channels.
    • NVIDIA has 6,500 employee families in Israel he is concerned for; he remains bullish on the UAE reinventing itself from an oil economy into an AI hub.
    • NVIDIA runs about 50,000 employees and may reach only 75,000 in ten years, “as small as possible,” because strategy means maximizing impact per unit of resource.
    • Jobs that are a single task (customer service call centers) will be automated; jobs with purpose survive because purpose does not change when the task is automated. “Don’t mistake your task for the job.”
    • In 10 to 20 years, photos of people typing at keyboards will look like old photos of typing pools with IBM Selectrics: typing was never the job, solving problems and creating value was.
    • The ChatGPT moment for robots has already arrived (a robot can reason through “put the apple in the drawer,” including opening the drawer first); useful robots in ordinary life within 3 to 4 years would not surprise him.
    • The agentic era’s capability has arrived and diffusion is next: the future holds 100 billion to a trillion agents running constantly, and agents will not become computers, they will use computers, which is why compute demand explodes.
    • $300 billion has been invested into US venture capital startups in the last six months, and he tells his nieces and nephews that great fortunes will be created on a laptop.
    • Life lessons: greatness requires “plenty of pain and suffering” and practice when nobody is watching; under maximum stress, time slows down the way athletes describe, and that comes from repetition.
    • He advises every bright mind in the world to come to America, the country built by immigrants that will need amazing immigrants in the future.
    • He wears no watch and refuses to let Outlook manage his life: “now is the most important time.” His perfect Saturday: dogs, work, family dinner, a cocktail, and he notes every weekend is exactly like that.

    Detailed Summary

    Export Controls Cut Both Ways

    The interview opens on a Financial Times report that Chinese regulators are considering export controls of their own, restricting Chinese AI models and semiconductors from reaching the West. Huang’s response is de-escalation in both directions: half the world’s AI researchers are Chinese, groundbreaking research flows from both countries, and once one side reaches for export controls, everyone starts thinking in those terms. He is confident the US will continue to lead as long as government supports rather than constrains its companies. Asked whether the US should ban Chinese models like Kimi, he rejects the premise: downloaded open models run inside harnesses and sandboxes with security, privacy, and access controls, and the idea of hidden back doors phoning home to China is a misconception. His China sales, he notes pointedly, are approximately zero today, so his position is not about protecting revenue he does not have.

    Open and Closed Models Both Win

    Huang’s framework is consistent: rent closed models (Anthropic, OpenAI, which he personally uses along with Perplexity) whenever you can because they are excellent and convenient, and build on open models only when you must, for sovereignty, regulation, privacy, or proprietary domain reasons. This is the pitch for NVIDIA’s own Nemotron open model family, which he positions not as a frontier competitor but as raw material for companies that need custom AI: “We don’t have to be the frontier. We have to be at the frontier.” He describes the modern stack in plain terms: the large language model is the brain, and a harness (he cites OpenClaw and Claude Code) turns it into a working agent. Open, cheap, and free models are on-ramps that grow the total population of AI users, which is why he insists the labs should not fear them: the person most likely to pay for Claude is someone already using AI who wants it better and easier.

    Kimi, DeepSeek, and Wall Street’s Repeated Mistake

    Chip stocks fell 18 percent in the month after Kimi dropped, echoing the roughly 30 percent NVIDIA drawdown when DeepSeek landed. Huang says the market got it wrong both times and for the same reason: free and open AI is great for hardware, because great models drive use, use drives data centers, and data centers drive chips. He runs through the models he considers extraordinary (Kimi 3, Qwen, Nemotron, GPT 5.6, Codex, Claude Code) and lands on his core claim about this moment: useful AI has finally arrived, and useful AI is profitable AI. Companies like NVIDIA happily pay hundreds of millions of dollars a year for coding agents doing high-value work, which funds more AI, which he describes as a flywheel that has now started.

    Don’t Outsource Your Alpha

    Allen raises the viral Palantir CEO warning about handing your intellectual property to frontier labs, noting Huang’s unique position as both a top customer and top supplier of those labs, including using their models for chip design. Huang agrees with the principle without hesitation: nobody, no company, no country should outsource its alpha or its intelligence. His dividing line is specificity: work that is domain-specific, proprietary, sovereign, secret, or regulated must be done in-house on your own models, while generic productivity work like marketing automation or legal department support should be outsourced to the labs as aggressively as possible. The same logic scales to nations, which he says cannot outsource their fundamental intelligence to a third party.

    The Jobs Evidence

    Asked what AI has done that scared or awed him, Huang says essentially nothing surprised him, including the demonstrated ability of Anthropic’s Mythos to penetrate hardened systems (“it surprised me that people were surprised,” since an AI that debugs software can obviously find vulnerabilities). What he wants the world to notice instead is the labor data. Radiology reading has been substantially automated, and the number of radiologists is up roughly 20 percent because they can now see the enormous backlog of patients. Paralegals are up roughly 10 percent by the same mechanism. Manufacturing jobs are up roughly 50 percent in recent years because AI data centers require industrial construction. His formulation of the real risk: AI will not take your job, someone who uses AI will, and the worst thing America could do is scare its own industries out of adopting the technology.

    Against the Doomers

    This is the section that gives the interview its title. Huang says warning people is fine, warning with a solution is better, and making things up is absolutely inappropriate. The end of humanity: complete nonsense. Half of American jobs destroyed: complete nonsense. The singularity, living in a simulation, machine consciousness: “all made ups,” fun science fiction he enjoys hearing from “many of those leaders and my friends,” but Hollywood, not ground truth. Asked why he is mobbed by fans in Asia while the American mood is hostile, he suggests the doomers theorize about science fiction outcomes because “maybe it makes them sound smart.” His prescription for the industry is to tell the factual story, that AI is creating millions of jobs, rather than a made-up narrative that frightens the public and, more dangerously in his view, frightens policymakers. His closest thing to a concession: the closest thing to true AI is R2-D2 and C-3PO, “and who doesn’t want R2-D2 and C-3PO?”

    CapEx, Tokens, and the Bubble Question

    Huang’s economic argument for the build out runs through the token. Unlike the CapEx-light software era, intelligence must be manufactured: machines generate the tokens behind every answer, every image, and eventually every protein, chemical, and robot movement. A token is an embedding of knowledge, and unlike a static number it gets smarter over time, which makes it more useful, more valuable, and worth paying more for. On the bubble, he does not deny one is possible: “The bubble will come someday. It’s just not today.” He rules it out for roughly five years and hedges on five to ten. His reasoning is that this cycle is industrial-driven rather than consumer-cyclical: the world is adding an intelligence layer on top of energy, internet, roads, and railroads, the semiconductor industry needs to be 5 to 10 times larger within a decade, and everything (chips, memory, optical interconnects, packaging, TSMC capacity, land, power, construction workers) is short. Those constraints pace the CapEx and push out the day supply overtakes demand. As for customers issuing hundreds of billions in debt to buy his chips, he says the companies are extraordinary cash generators and the ROI question has been settled by profitable coding agents.

    Trump, Washington, and the Over-Correction Risk

    Huang describes a genuinely warm relationship with President Trump: they text, the president remembers chip model numbers (H20, H200, Blackwell, and next-generation Rubin), and the Fort Worth factory hosting the interview traces directly to their first conversation about restoring American manufacturing. He praises Susie Wiles, Secretary Bessent, and Secretary Lutnick. But his message to the administration is a warning: signs point toward more restrictive AI policy, and he fears policymakers falling for science fiction narratives (consciousness, an imminent finish line in a US-China race) pushed partly by companies hoping regulation will advantage them. His advice: talk to many CEOs and scientists, not one or two, take time, and do not over-correct. He rejects the 100-meter-dash framing of the China race entirely, arguing the win is diffusion, not invention: America did not invent electricity or manufacturing, it applied them with more enthusiasm than anyone, and that is what made the country. Asked about the government taking equity stakes in AI companies, he calls it unnecessary: the US already holds a stake in NVIDIA through $10 billion in annual taxes, job creation, and the stock market.

    Mythos for Everyone, and the Distillation Question

    In the most newsworthy exchange, Allen asks whether the world is ready for Anthropic’s most powerful model, Claude Mythos, to be available to everyone rather than selected institutions. Huang’s answer is unambiguous: it should absolutely be available to everyone, it is Anthropic’s responsibility to harden it, and jailbreaks are the nature of software, to be patched as fast as they are found. He points to the referenced jailbreak incident and observes that “everything was fine,” while noting that holding Anthropic back serves no American interest, especially since open models are available regardless. On distillation, he splits the question: AIs learning from other AIs is fundamental and inevitable (within a few years, he predicts, the internet will be 99 percent AI-generated content, so every model is distilling other AIs anyway), but violating terms of service or privacy is not acceptable, and aggrieved providers should pursue the conventional legal remedies that already exist.

    Robots, Agents, and the Next Era

    Huang argues the ChatGPT moment for robots has already happened, on his definition: the 2022 ChatGPT moment was not when AI became useful (that took four more years) but when it did something surprising, and a robot that can reason through “put the apple in the drawer,” including opening the drawer first, clears that bar today. Useful everyday robots within three to four years would not surprise him. On the agentic era, capability has arrived and diffusion is what comes next: where perhaps 100 million humans use computers at any given moment today, the future holds 100 billion to a trillion agents of every kind running constantly. His line: agents are not going to become computers, agents are going to use computers, and that is the deepest driver of compute demand.

    Life Lessons from 33 Years at the Helm

    The closing stretch turns personal. On keeping NVIDIA at roughly 50,000 employees (maybe 75,000 in ten years, “as small as possible”) while peers run six figures, he says strategy is using limited resources with maximum precision, a craft he has practiced longer than any CEO in tech history: “this is my kung fu.” On which jobs disappear, he distinguishes task from job from purpose: call center tasks will be automated, but a radiologist’s purpose (ending human suffering) survives the automation of scan reading, and typing was never the job in the first place. Born in Taiwan and sent to a rough American boarding school at nine, he calls America the greatest country in the world because open discourse and freedom let it work through its disagreements, and he urges bright minds everywhere to come. On greatness: no athlete just happens to be great, it is practice when nobody is watching, setbacks, losing, and “plenty of pain and suffering” that elevate craft, character, and resilience. He wears no watch because now is the most important time, and his perfect Saturday (dogs, work, family dinner, a cocktail) is, he says, exactly what every weekend already looks like.

    Notable Quotes

    “And so the fact that this is going to be the end of humanity, it’s complete nonsense. The fact that this is going to destroy half of the American jobs. It’s complete nonsense. And all of the facts, all of the evidence point exactly to the opposite.”

    Jensen Huang, on AI doom predictions from fellow tech leaders

    “AI is not going to destroy all of our jobs. Someone who uses AI is going to take our jobs, and so we have to make sure that we adopt AI, diffuse AI into the industries as quickly as possible.”

    Jensen Huang, on the real employment risk of the AI era

    “Nobody should outsource their alpha. Nobody should outsource their intelligence. No country should.”

    Jensen Huang, agreeing with the Palantir CEO’s warning about handing IP to frontier labs

    “We don’t have to be the frontier. We have to be at the frontier.”

    Jensen Huang, on NVIDIA’s Nemotron open source model strategy

    “The bubble will come someday. It’s just not today.”

    Jensen Huang, on whether the AI build out is a bubble

    “It is made up that there’s going to be a singularity. It’s made up that somehow we’re living in a simulation. These are all made ups.”

    Jensen Huang, on science fiction narratives he says are scaring the public and policymakers

    “The closest thing to true AI is R2-D2 and C-3PO. And who doesn’t want R2-D2 and C-3PO?”

    Jensen Huang, on how to inoculate the public against fear of AI

    “These two companies will be the most successful IPOs in human history.”

    Jensen Huang, predicting the public debuts of OpenAI and Anthropic

    “If your job is the task, then it’s very likely that when that task is automated, your job will be eliminated or changed.”

    Jensen Huang, on which jobs disappear in an industrial revolution

    “Because now is the most important time. I refuse to let Outlook manage my life, and I refuse to let a watch manage my life.”

    Jensen Huang, on why he does not wear a watch

    Watch the full conversation between Jensen Huang and Mike Allen on Axios Behind the Curtain here.

    Related Reading

  • Can the AI Industry Regulate Itself? All-In on Demis Hassabis’s SRO Proposal, Stripe’s PayPal Bid, Apple vs OpenAI, and New York’s Data Center Ban

    The besties open on the biggest live question in artificial intelligence policy: can the AI industry regulate itself before the government does it for them? Jason Calacanis, Chamath Palihapitiya, David Sacks, and David Friedberg dig into DeepMind co-founder Demis Hassabis’s proposal for a FINRA-style self-regulatory organization for frontier models, then work through a packed docket that runs from Stripe’s audacious bid for PayPal to Apple’s trade-secrets lawsuit against OpenAI, the xAI Grok Build data leak, the economics of token spend, New York’s first-in-the-nation data center moratorium, foreign influence campaigns shaping American attitudes toward AI, and a science corner on an enzyme that reverses skin aging. You can watch the full episode here.

    TLDW

    Demis Hassabis proposed a US-led international AI standards body modeled on FINRA: federally overseen, industry funded, run by independent technical experts, with frontier labs submitting models 30 days before release, voluntary at first and mandatory later. The proposal drew broad endorsement across the industry, and the besties debate whether an SRO beats the alternatives. Sacks says he could get on board only under five strict conditions (broad representation including startups and open source, frontier-only review, catastrophic-risk-only scope, voluntary-first, and substitution for rather than addition to new agencies), and warns the plan is an opening bid that Anthropic will use as a stepping stone toward Dario Amodei’s “FAA for AI.” The show then turns to Stripe, Block, and Advent bidding roughly $53 billion for PayPal and what it means for Visa and Mastercard, a wave of AI-native operators reviving stale digital businesses (Bending Spoons, Ryan Cohen), Apple’s lawsuit accusing OpenAI of stealing trade secrets, xAI’s Grok Build silently uploading entire codebases despite a privacy setting, the enormous spread in token costs and Ramp’s new spend controls, Apple’s local-model opportunity with M7 Ultra silicon, America’s looming energy deficit and behind-the-meter power, New York’s hyperscale data center moratorium, alleged Russian and PRC influence operations shaping anti-GMO and anti-data-center sentiment, and a science corner on a Calico enzyme that degrades glycation products to reverse skin aging.

    Thoughts

    The most important idea in this episode is not the SRO itself but Sacks’s framing of it as an opening bid. His five conditions are a genuinely useful blueprint for how self-regulation could work without curdling into regulatory capture, and his instinct that catastrophic-risk-only scope (cyber and CBRN, not disinformation or “microaggressions”) is the only defensible mandate is the right line to draw. But the deeper point is structural: when an industry walks into government and says “please regulate me,” almost no one in government answers “we’re not qualified.” They say thank you and come back for more. That asymmetry, not any specific rule, is what makes voluntary concessions dangerous. If the SRO is offered for free rather than traded for hard federal preemption written into law, it becomes the floor of a ratchet, not the ceiling of a compromise.

    The Anthropic critique running through the segment deserves to be taken on its merits rather than dismissed as a grudge. The claim is specific and falsifiable: that a company now valued in the trillions is funding a state-by-state strategy of one-upmanship, where each new bill is tougher than the last, deliberately producing a patchwork rather than the single national framework everyone claims to want. Whether or not you accept the motive, the mechanism is real and the incentives are legible. If your cost per million tokens is fifty to a hundred times your competitor’s, and cheaper open models plus fine-tuning can cover the vast majority of tasks, then the fastest way to protect a premium price is to make the cheap alternatives legally or practically harder to ship. That is the ladder-pulling thesis, and the token-cost numbers cited on the show are the reason it is not paranoid.

    The PayPal bid is the clearest signal of a new operating logic in the capital markets. The interesting question Chamath poses is not “what synergies does PayPal have” but “what is the only thing Advent, Stripe, and Block could build together,” and the answer is a genuine competitor to Visa and Mastercard: hundreds of millions of consumer accounts, Stripe’s merchant relationships and risk infrastructure, Block’s point-of-sale and Cash App, and stablecoin rails from Bridge and PYUSD that can push transactions on-us and bypass the card networks. The antitrust twist is elegant. Define the market as merchant APIs and it looks like consolidation; define it as the card duopoly and the same deal is pro-competitive. This deal would have been dead on arrival two years ago, and the fact that it is live now tells you as much about the regulatory climate as it does about payments.

    Underneath the payments story is a broader thesis worth naming: AI-native operators buying mature, founder-less, “stale” digital businesses and modernizing them. Bending Spoons rolling up AOL, Vimeo, Evernote, WeTransfer, and Eventbrite is the template, and Ryan Cohen’s eBay interest is the second dot on the line. The claim is that a modern operator can diagnose where a legacy business overspends, underinvests, and fails to use AI, then fix it with a small team of AI-first executives rather than a McKinsey engagement. It is a persuasive pattern, though PayPal is a harder case than the show admits: a 25-year-old interaction model growing 7% a year is not obviously revived by efficiency alone. Buying 400 million consumer accounts is buying distribution, not a product vision, and the open question is whether anyone can resuscitate the consumer experience rather than just milk it.

    The data center segment is where policy, energy, and information warfare collide, and Friedberg’s anti-GMO analogy is the sharpest thing in it. His argument is that manufactured public sentiment, traceable in one case to a foreign media push, can override the scientific and economic merits of a technology for years, and that the anti-data-center movement rhymes with it: closed-loop cooling that uses trivial amounts of water, land-use efficiency that dwarfs almonds and golf courses, and natural gas that burns clean, all drowned out by a moral panic. Whether or not you buy the specific foreign-influence attribution, the underlying tension is real and unresolved. America is staring at a structural electricity deficit while individual blue states treat data centers as a luxury they can refuse, and behind-the-meter power plus edge compute chasing cheap electrons is emerging as the workaround. The moratorium framing matters most here: a “pause” on data centers is not a few months, it is five years once you count ramp-up, and that is long enough to lose a race that may only be measured in months of lead.

    Key Takeaways

    • Demis Hassabis proposed a US-led international AI standards body modeled on FINRA: federally overseen, industry funded, and run by independent technical experts rather than a new government agency.
    • Under the proposal, frontier labs would submit models roughly 30 days before release; the body would assess risk to cybersecurity, national security, and biological threats, update benchmarks quarterly, and could coordinate a development slowdown if the situation demanded it.
    • The plan would be voluntary at first and mandatory later, and drew endorsement from a broad set of industry figures including Elon Musk, Sam Altman, Anthropic’s Jack Clark, Sundar Pichai, Satya Nadella, and Jack Dorsey.
    • A self-regulatory organization (SRO) like FINRA or the National Futures Association lets the industry set its own testing rules under federal oversight, adjusting faster than a government agency could as the technology changes.
    • Sacks laid out five conditions for supporting an SRO: broad representation including startups and open source; review of true frontier models only; scope limited to catastrophic risk (cyber and CBRN); voluntary before mandatory; and a substitute for, not an addition to, new regulatory agencies.
    • Sacks argued a government “FAA for AI” would be extreme: type certification for a new aircraft design takes 5 to 9 years, and applying that permission-based model to AI would push release timelines from months to years and lose the race to China.
    • He characterized the SRO as an “opening bid” that Anthropic and others would use as a stepping stone toward Dario Amodei’s repeatedly stated goal of an FAA-style regulator, unless it is traded for hard federal preemption written into law.
    • The besties cited a Politico report on Anthropic’s alleged state-by-state strategy of one-upmanship, using California’s SB 53 as a model and then ratcheting each subsequent state’s rules tougher, producing a patchwork rather than a single national framework.
    • Chamath warned of a “torrent of money” trying to influence both political parties toward some form of regulatory capture, and urged establishing industry rules quickly to supersede the need for a federal agency.
    • Stripe and private equity firm Advent, joined by Jack Dorsey’s Block contributing about $17 billion in equity, are jointly bidding roughly $53 billion (about $60 per share) for PayPal, with many expecting the final clearing price closer to $70.
    • The strategic logic is a new competitor to Visa and Mastercard: PayPal’s 400-plus million consumer accounts, Stripe’s merchants and risk infrastructure, Block’s point-of-sale and Cash App, and stablecoin rails from Stripe’s Bridge and PayPal’s PYUSD.
    • The antitrust outcome hinges on market definition: framed as merchant APIs (Stripe vs. Braintree) it looks anti-competitive, but framed against the Visa/Mastercard duopoly it is pro-competitive, and a deal like this would have been blocked two years ago.
    • PayPal peaked around a $322 billion market cap and fell to roughly $30 to 40 billion, which is precisely why it is now attracting bids; Stripe now processes more annual volume than PayPal, but lacks PayPal’s consumer relationship.
    • Sacks traced PayPal’s long stagnation to its 2002 eBay acquisition under Meg Whitman, when the founding team was pushed out; the “PayPal mafia” (which Sacks prefers to call the “PayPal diaspora”) formed as a result.
    • The deal is framed as part of a wave of AI-native operators reviving mature, founder-less digital businesses, with Bending Spoons (AOL, Vimeo, Evernote, WeTransfer, Eventbrite) as the roll-up template and Ryan Cohen’s eBay interest as another data point.
    • M&A is broadly “back on the menu” post-Lina Khan, with deals like Uber acquiring Delivery Hero, driving liquidity and renewed LP appetite for venture alongside SpaceX distributions.
    • Apple filed a 41-page lawsuit against OpenAI on July 10th alleging stolen trade secrets tied to OpenAI’s consumer hardware device; OpenAI’s chief hardware officer Tang Tan is a former Apple VP of iPhone design.
    • The complaint alleges Apple job candidates were directed to bring actual parts to OpenAI interviews for “show and tell,” and cites a text about accessing network storage; OpenAI has reportedly poached over 400 Apple employees.
    • The besties’ rule of thumb: when leaving a company, the only thing you can take is what is in your head; no documents, thumb drives, or files, because Apple rarely litigates and doing so signals something egregious.
    • xAI’s Grok Build, powered by Grok 4.5 and running inside Cursor, was reportedly sending users’ entire codebases (potentially including passwords and API keys) to servers despite a privacy setting meant to prevent it; xAI disabled the upload on July 13th and open-sourced the harness.
    • Chamath’s takeaway: privacy in AI is fragile and brittle, “zero data retention” cannot be guaranteed, and there are non-obvious data-leak vectors and “trap doors” everywhere, arguing for a stratified ecosystem with independent third-party layers between enterprises and models.
    • The “reverse information paradox” (building on Palantir’s Alex Karp) holds that technically capable enterprises want control over their compute, models, weights, data, and “alpha,” via real trust boundaries, private evals, in-tenant learning loops, decoupled orchestration, and the right to fine-tune.
    • Cited token costs per million showed a huge spread: roughly $56 on a premium frontier model, about $26 on another, roughly $1.50 for Grok input, around $1 for Elon’s, and about 50 cents for Chinese models, with a claim that 95 to 98% of tasks could run one tier cheaper.
    • Ramp CEO Eric Glyman launched token spend management because CFOs cannot see or control AI spend; Ramp customers’ token spend has grown 21x in a year, and someone will eventually miss an earnings quarter on runaway AI opex.
    • Engineers optimize for the latest, greatest model while CFOs bear the cost, a misalignment that platforms fine-tuning cheaper open models (like Mira Murati’s Thinking Machines effort) are positioned to exploit.
    • Calacanis called Apple a “screaming buy” on local models: rumored M7 Ultra silicon supporting up to 1.5 terabytes of memory could run last-generation frontier-class models locally on a Mac Studio, putting downward pressure on cloud AI pricing.
    • Edge compute is fragmenting outward: Sunrun announced distributed data center blocks for homes, and Span partnered with Nvidia, with compute increasingly “chasing energy” like cheap solar and battery power.
    • Chamath projected the US will be short 2.5 Californias’ worth of energy by 2050; a recent PJM auction that needed 7 to 8 gigawatts reportedly saw only a fraction show up, underscoring the electricity crunch.
    • “Behind the meter” power lets data centers generate their own electricity on owned property, but clean-air permitting is a major obstacle; Elon reportedly used clustered mobile engines and solutions like Bloom Energy to keep projects under personal-use permits (as with Colossus in Memphis).
    • New York Governor Kathy Hochul announced the nation’s first statewide moratorium on hyperscale data centers; the besties rebutted her claims on power, land, noise, water, and pollution point by point.
    • Modern data centers use closed-loop cooling (one claim compared a typical facility’s water use to a couple of In-N-Out restaurants), occupy trivial land relative to their economic value, generate tax revenue and construction jobs, and are largely powered by clean-burning natural gas.
    • Sacks argued the same political forces slowing domestic data centers are also behind chip export controls that would block data centers in allied countries, raising the question of where the buildout can happen at all.
    • Friedberg drew an anti-GMO analogy: he argued anti-GMO sentiment tracked the US presence of Russia Today (2010 to 2022) rather than the science, and worried a similar manufactured sentiment is now driving anti-data-center attitudes.
    • Sacks cited an OpenAI blog post on PRC-linked influence operations targeting US AI debates, with a congressional investigation reportedly coming, noting China has a clear incentive to slow American AI infrastructure.
    • Sacks framed the moment as a “moral panic”: the catastrophes people fear from AI (cyber, job loss) have not materialized, yet the US risks damaging its crown jewel of free-market innovation with premature regulation over hypothetical risks.
    • The panel questioned Dario Amodei’s prediction that 50% of entry-level knowledge-worker jobs could disappear within one to five years, arguing the harms have not shown up and only a handful of frontier labs (which already do safety testing and red-teaming) even matter.
    • A cited framing of the alleged Anthropic strategy: brand yourself as the safe AI company, ban unsafe AI, then profit; a fresh Chinese model (Kimi K2) was noted as very close to the frontier, suggesting a US lead of only months.
    • Science corner: a paper from Google’s Calico and partner Retro-style researchers used AlphaFold plus directed evolution to engineer a novel enzyme that degrades CML, a key advanced glycation end product in the extracellular matrix that drives aging.
    • The engineered enzyme cleared 52 to 97% of CML from body proteins in vitro and eliminated 55% of CML from donated elderly human skin, effectively reversing that skin’s biological age toward that of a 31-year-old, pointing first toward a potentially trillion-dollar cosmetic market.

    Detailed Summary

    Demis Hassabis’s FINRA-Style SRO for AI

    DeepMind’s Demis Hassabis published a proposal for a US-led international AI standards body modeled on FINRA, the Financial Industry Regulatory Authority. The design is federally overseen but industry funded and run by independent technical experts. Frontier labs would submit models about 30 days before release, and models would be assessed for risk across cybersecurity, national security, biological threats, and other high-risk domains. Benchmarks would update quarterly, the body could coordinate a development slowdown if warranted, and participation would be voluntary at first and mandatory later. The proposal drew endorsements across the industry, including Elon Musk (who called it thoughtful), Sam Altman, Anthropic’s Jack Clark, Sundar Pichai, Satya Nadella, and Jack Dorsey.

    Friedberg explained the SRO concept: bodies like FINRA and the National Futures Association let financial institutions set their own regulatory rules and check one another, under federal oversight but not federal control, reporting up to Senate and House committees. The AI analogy is that many players are all advancing the technology and none wants a single outside regulator dictating tests, especially after California’s earlier AI legislation was, in his telling, outdated by the time it would have taken effect. An SRO can bring in industry experts, adjust tests over time, and operate faster than a new agency. Chamath endorsed it strongly, warning that a “torrent of money” will try to influence both political parties toward regulatory capture, and that establishing rules quickly is the way to avoid that off-ramp while retaining ultimate federal oversight through Commerce and the DOJ.

    Sacks’s Five Conditions and the “FAA for AI” Warning

    Sacks said he could personally get on board with an SRO because it is “infinitely better” than a new government agency that would become a “DMV for AI,” or worse, Dario Amodei’s “FAA for AI.” He laid out five conditions: the SRO must have broad industry representation including startups and open source (to avoid the three biggest labs capturing it); it should review only true frontier models that represent a step change in capability, not hold up lesser models; its scope should be catastrophic risk only, meaning cyber and CBRN (chemical, biological, radiological, nuclear), not disinformation or speech; it should be voluntary before mandatory, proving it works first; and it must substitute for, not add to, new regulatory structures.

    He then explained why an FAA model is extreme: the FAA approves new airplane designs through type certification, which takes 5 to 9 years for a new aircraft and 3 to 5 years for major amendments. Applying permission-based regulation to AI, where new model versions ship every couple of months, would push timelines from months to years and lose the race to a China that will not abide by those rules. His conclusion: if the choice is FAA for AI, DMV for AI, or Hassabis’s SRO, the SRO wins, but it has to be kept “honest and pure,” because otherwise it becomes the opening bid in a coming wave of regulation and a vehicle for massive regulatory capture. He argued that companies making concessions to buy off politicians will only invite the government to come back for more, and that at some point these companies have to grow a spine, draw a line, and demand preemption in exchange.

    The Anthropic Regulatory-Capture Debate

    Sacks revisited his October claim that Anthropic was running a “sophisticated regulatory capture strategy based on fear-mongering,” arguing that what looked like beating up on a startup now looks different given Anthropic’s trillion-dollar valuation and industry-leading revenue. He cited a Politico piece, “Inside Anthropic’s state-by-state plan to ratchet up AI rules,” describing a strategy of one-upmanship: pass a model bill like California’s SB 53, then make each subsequent state’s rules stricter, deliberately producing a patchwork instead of a single national framework. The panel noted states have strong sovereignty rights (as with self-driving cars) and Anthropic is “winning” in California, Illinois, New York, and other blue states, because government officials rarely refuse an invitation to regulate.

    Stripe, Block, and Advent Bid for PayPal

    Stripe and private equity firm Advent, joined by Jack Dorsey’s Block contributing about $17 billion in equity, are jointly bidding roughly $53 billion (about $60 per share) for PayPal, with many expecting a final price closer to $70. PayPal still has more than 400 million consumer accounts and processes about $1.7 trillion a year, but its 25-year-old product is growing only about 7% and is seen as legacy. Chamath’s key question was what unique thing this trio could build: a competitor to Visa and Mastercard. Combining PayPal’s consumer accounts, Stripe’s merchant relationships and risk infrastructure, Block’s point-of-sale and Cash App, and stablecoin rails from Stripe’s Bridge and PayPal’s PYUSD would allow far more on-us transactions that bypass the card networks, potentially passing large discounts to merchants and consumers.

    Friedberg walked through the deal structure: the $17 billion equity contribution effectively means Stripe and Block sell equity to cash investors, that cash buys PayPal, and the parties end up cross-owning pieces of each other, with the Stripe team the likely operator post-close. The antitrust question turns on market definition: framed as merchant APIs, it is Stripe versus Braintree and looks like consolidation; framed against the Visa/Mastercard duopoly, adding competition is pro-competitive. Sacks noted the deal would have been “the antitrust equivalent of a colonoscopy” two years ago. He also recounted PayPal’s history: acquired by eBay in 2002 under the corporate-minded Meg Whitman, the founding team was pushed out, creating what he prefers to call the “PayPal diaspora” rather than the “PayPal mafia.”

    AI-Native Operators and the M&A Wave

    Freeberg framed the PayPal and eBay stories as part of an emerging line: AI-native operators buying first-generation digital-native businesses that have gone mature, stale, and founder-less, and that have not yet realized their AI potential or are overspending. Bending Spoons is the roll-up template, having acquired AOL, Vimeo, Evernote, WeTransfer, and Eventbrite and revitalized them from Milan with young, AI-first executives. The panel connected this to Josh Kushner’s and General Catalyst’s roll-ups of traditional services businesses. Calacanis added the macro backdrop: after venture was “on the ropes” under Lina Khan, M&A is “back on the menu,” with deals like Uber acquiring Delivery Hero, renewed LP appetite, and liquidity from SpaceX distributions.

    Apple Sues OpenAI Over Trade Secrets

    Apple filed a 41-page lawsuit against OpenAI on July 10th alleging stolen trade secrets used to develop OpenAI’s consumer hardware device. OpenAI’s chief hardware officer, Tang Tan, is Apple’s former VP of iPhone design; the complaint alleges he directed Apple job candidates interviewing at OpenAI to bring “actual parts” for “show and tell,” and cites a text from a former Apple engineer about accessing network storage. OpenAI has reportedly poached over 400 Apple employees. Chamath noted Apple rarely litigates, so the suit signals something they found egregious, while cautioning that the facts are alleged and unproven. Sacks declined to opine on the specifics but offered a simple rule: when changing jobs, take nothing but what is in your head, no documents, thumb drives, or files.

    The Grok Build Data Leak and AI Privacy

    xAI’s Grok Build, powered by Grok 4.5 and running inside Cursor, was reportedly sending users’ entire codebases (not just the files needed for a task, but potentially passwords, API keys, and change logs) to servers, despite a privacy setting meant to stop it. xAI disabled the upload on July 13th, Elon said previously uploaded data was deleted, and xAI open-sourced the harness. Chamath used it to make a larger point tied to his CNBC comments and Alex Karp’s remarks: privacy in AI is fragile and brittle, “zero data retention” cannot truly be guaranteed, and there are non-obvious leak vectors and “trap doors” everywhere. His conclusion is that enterprises need a stratified ecosystem with independent third-party layers between them and the models to manage exposure (a model his firm 8090 uses in its “software factory”).

    Sacks connected this to a blog post on the “reverse information paradox,” building on Karp’s point that technically capable enterprises want control over their compute, models, weights, data, and “alpha.” The recipe: establish a real trust boundary with private evals, proprietary learning loops inside the tenant, decoupled orchestration, and the explicit right to fine-tune their own outputs. He described an emerging ecosystem forming alternatives to the monolithic closed model stacks that Anthropic and, to some extent, OpenAI want customers locked into.

    Token Economics and Ramp’s Spend Controls

    The panel cited a wide spread in cost per million tokens: roughly $56 on a premium frontier model, about $26 on another (similar to a Claude tier), around $1.50 for Grok input, about $1 for Elon’s, and roughly 50 cents for Chinese models. Calacanis said he built a deep-linking podcast player across models on Perplexity and that the new Grok run cost only $11. Ramp CEO Eric Glyman appeared on Squawk Box to launch token spend management, noting Ramp customers’ token spend has grown 21x in a year and that CFOs struggle to see or control spend on an open-ended tab where rates rise with each new model. The takeaway: engineers optimize for the newest model while CFOs bear the cost, and unless that misalignment is controlled, runaway opex becomes a “money-burning furnace” that will eventually cause a public company to miss earnings. The panel argued 95 to 98% of tasks could run one tier cheaper, which is exactly the opportunity platforms fine-tuning cheaper open models (like Mira Murati’s Thinking Machines) are chasing.

    Apple’s Local-Model Opportunity and Edge Compute

    Calacanis called Apple a “screaming buy,” citing Mark Gurman’s report that a rumored M7 Ultra chip could support up to 1.5 terabytes of memory, double the current ceiling. That would let a Mac Studio run last-generation frontier-class models locally, giving users effectively unlimited tokens on the desktop and putting downward pressure on cloud AI pricing from the likes of Anthropic and OpenAI. Freeberg added that edge compute is fragmenting outward: solar company Sunrun announced distributed data center blocks for homes, and Span partnered with Nvidia. The theme is compute chasing cheap energy, whether excess solar or battery power charged at night.

    The Energy Deficit and Behind-the-Meter Power

    Chamath warned the US will be short about 2.5 Californias’ worth of energy by 2050, and pointed to a recent PJM auction (serving Pennsylvania, New Jersey, Maryland and other states) that needed 7 to 8 gigawatts but reportedly saw only a fraction show up. He explained “behind the meter” power: rather than drawing grid power from a utility line, a data center generates its own electricity on owned property. The obstacle is clean-air permitting. Solar takes too much space and batteries still need a generation source, so operators use gas. He described Elon clustering mobile 18-wheeler-style engines to keep them under personal-use permits, and newer solutions like Bloom Energy that allow large installations under similar rules, which is how projects like Colossus in Memphis got off the ground.

    New York’s Data Center Moratorium

    New York Governor Kathy Hochul announced the nation’s first statewide moratorium on hyperscale data centers, citing power draw, land use, water, and noise pollution. The besties rebutted each claim: behind-the-meter power means facilities bring their own electricity rather than competing with residential ratepayers; data centers are highly land-efficient, and New York State is roughly 70 to 80% undeveloped outside the city; noise can be managed with distance; modern facilities use closed-loop cooling (one comparison put a typical facility’s water use at a couple of In-N-Out restaurants, far less than almonds or golf courses); and natural gas is a clean-burning power source. They noted the tax revenue, construction boom, and ongoing jobs data centers create. Sacks cited a theory that Democrats intend the “moratorium” as leverage: pause construction until they can dictate terms, then lift it under a future administration in exchange for a new regulatory agency and speech controls ported from the social-media trust-and-safety agenda. He stressed a moratorium is effectively a five-year pause once ramp-up is counted, and that the same forces slowing domestic builds are pushing chip export controls that would block data centers in allied countries too.

    Foreign Influence, Anti-GMO, and the AI Moral Panic

    Freeberg drew an extended analogy between anti-data-center sentiment and anti-GMO sentiment. He argued that GMOs were prevalent and uncontroversial from their 1996 launch until anti-GMO sentiment rose in tandem with Russia Today’s US presence (2010 to 2022) and fell after RT was pushed out, and that similar KGB-era “directed measures” influence campaigns can be traced to opposition to nuclear energy in Germany. He cited a poll showing over 50% of Americans believe data centers increase water and electricity costs even where facilities recycle water and generate their own power. Sacks pointed to an OpenAI blog post on PRC-linked influence operations targeting US AI debates, with a congressional investigation reportedly coming, arguing China has a clear incentive to slow US AI infrastructure, kill open source, and constrain cheaper models. Sacks then broadened it to a “moral panic”: the feared catastrophes (cyber, job loss) have not materialized, yet the US risks damaging its crown jewel of free-market innovation over hypothetical risks, questioning Dario Amodei’s prediction that 50% of entry-level knowledge-worker jobs could vanish within one to five years and noting the fresh Chinese model Kimi K2 is close to the frontier.

    Science Corner: An Enzyme That Reverses Skin Aging

    Freeberg closed with a paper from Google’s secretive longevity startup Calico and a pharma partner focused on the extracellular matrix, the space between cells. Over time, sugars and fats bind to proteins there in a process called glycation, accumulating as advanced glycation end products (chiefly a molecule called CML) that stiffen tissue, cause wrinkles and immobility, and drive inflammation, with nothing in the body to break them down. The researchers used AlphaFold to find a protein that could bind and degrade CML, then applied directed evolution across five recursive cycles, DNA-programming thousands of variants to maximize activity. The engineered enzyme cleared 52 to 97% of CML from body proteins like collagen, casein, and hemoglobin in vitro, and eliminated 55% of CML from donated elderly human skin, effectively reversing that skin’s biological age toward a 31-year-old’s. Open questions remain about delivery (cream, shot, supplement, or an RNA therapy that makes the enzyme inside the body), but the panel expects the first market to be a trillion-dollar cosmetic one, and hailed it as a profound demonstration of AI-driven protein engineering.

    Notable Quotes

    “The whole industry is going to need to be regulated and I think the industry needs to regulate themselves. That’s the key to this.”

    Jason Calacanis, replaying his earlier call for AI self-certification

    “If my choices are between FAA for AI or what I would call the DMV for AI, I would much rather go for Demis’ SRO for AI.”

    David Sacks, on why self-regulation beats a new government agency

    “There’s hardly anyone in government who will ever say, oh no no no, we’re not qualified. Most people in the government will say thank you very much, what else can we take.”

    David Sacks, on the asymmetry that makes voluntary concessions dangerous

    “What it prevents is a handful of actors using their balance sheets and their capital to essentially pull the ladder up.”

    Chamath Palihapitiya, on the point of establishing industry rules quickly

    “You are creating a competitor to Visa and Mastercard.”

    Chamath Palihapitiya, on the only thing Stripe, Block, and Advent could build together with PayPal

    “The only thing you can bring to your new job is what’s in your head. Your memories. But never leave with anything else.”

    David Sacks, on avoiding trade-secret disputes when changing employers

    “Privacy in AI is very fragile and it’s very brittle. You are leaking information where you don’t know it.”

    Chamath Palihapitiya, on the limits of zero-data-retention promises

    “Unless you get a control of this and you can directly say how much money you’re making, this is a bridge to nowhere. It is a money burning furnace.”

    Chamath Palihapitiya, on uncontrolled enterprise token spend

    “We’re on the threshold of destroying the crown jewel of our economy, which is the system of free market innovation that we have.”

    David Sacks, on the risk of a premature AI regulatory apparatus

    “Number one, brand yourself as a safe AI company. Number two, ban unsafe AI. Three, profit.”

    David Sacks, summarizing the strategy he attributes to the “safe AI” positioning

    Watch the full conversation here: Can the AI Industry Regulate Itself? on the All-In Podcast.

    Related Reading

    • FINRA the financial-industry self-regulatory organization that Demis Hassabis’s AI proposal is modeled on.
    • AlphaFold (Wikipedia) the protein-structure prediction system behind the age-reversal enzyme discovery in the science corner.
    • PayPal Mafia (Wikipedia) background on the founders Sacks calls the “PayPal diaspora.”
    • The Founders by Jimmy Soni, the definitive history of PayPal’s founding team and its diaspora.
    • Advanced glycation end-products (Wikipedia) the biochemistry of CML and the extracellular-matrix aging the Calico enzyme targets.

  • Ray Dalio on How He Built the Largest Hedge Fund in the World: The Holy Grail of 15 Uncorrelated Return Streams, Pain Plus Reflection, and a Bubble Gauge at 75% of 1929 Levels

    Ray Dalio, the 76-year-old founder of Bridgewater Associates, sat down with Sam Parr and Shaan Puri of the My First Million podcast for a wide-ranging conversation that compresses fifty years of investing, company building, and life philosophy into an hour. He tells the story of losing everything in 1982 and borrowing $4,000 from his dad, lays out the “holy grail” mantra that rebuilt Bridgewater into the largest hedge fund in the world, explains the personality test he gave to Elon Musk, Bill Gates, and Reed Hastings, and drops a genuinely newsworthy data point: his bubble gauge now reads about 75% of the way to where it stood in 1929 and 2000.

    TLDW

    Dalio recounts going broke in 1982 after wrongly predicting a depression, and the two lessons that built Bridgewater’s bottom: humility to balance audacity, and diversification into 15 good uncorrelated return streams (the “holy grail” that cuts roughly 80% of risk without cutting returns). He explains turning every decision into a backtested, timeless-and-universal rule programmed into computer code, the “pain plus reflection equals progress” formula, transcendental meditation as the bridge to the subconscious, and the shaper personality type shared by Musk, Gates, and Hastings. The conversation covers freedom money versus grand visions, hiring on values then abilities then skills, his caddying-to-Fortune-500-library origin story, the five big forces behind the changing world order, the mechanics of bubbles (wealth versus money), his correction of the rumor that his family office is 70% gold (he recommends 5 to 15%), why Bridgewater actually became the biggest (11.8% a year for roughly 31 years, uncorrelated, only about three losing years), and his definition of success: knowing your nature and finding the best path through it, with meaningful work and meaningful relationships as the payoff.

    Thoughts

    The most useful thing in this interview is not any single aphorism, it is the loop Dalio describes for manufacturing principles. Pain arrives involuntarily. Most people stop there, hung up in the pain. Dalio trained an instinct that reframes pain as a puzzle about how reality works, solves the puzzle into a written if-then rule, and then, and this is the step almost nobody copies, compiles the rule into computer code so it executes without him. Everyone journals. Dalio compiles. Thousands of principles accumulated over 35 years become a decision system that runs whether or not the human is having a good day. That is the actual moat, and it is why he keeps insisting the returns had nothing to do with charm.

    The holy grail math deserves more attention than it usually gets, because it is one of the few pieces of elite investing advice that survives contact with a normal portfolio. Fifteen good uncorrelated return streams cut about 80% of risk without reducing return, a roughly fivefold improvement in return-to-risk. Notice where it came from: not from a whiteboard, but from a public, humiliating failure. Dalio testified to Congress predicting a depression, was completely wrong, and had to fire everyone. Diversification, in his telling, is what humility looks like when it is expressed as portfolio construction. The upside-without-downside question is not greed, it is the engineering spec that follows from admitting you will be wrong a lot.

    The market call is the headline for 2026. His bubble gauge, built on measurable ingredients like wealth created relative to money, leverage behind purchases, and everybody-is-buying exuberance, sits at about 75% of its 1929 and 2000 readings. He is careful about what that does and does not mean: it predicts poor forward returns over some horizon, but it says nothing about timing, which depends on what pricks the bubble, typically tightening monetary policy or anything else that forces wealth to be converted into cash. He also flatly kills the viral claim that his family office is 70 to 75% in gold ETFs (“totally wrong”), recommending 5 to 15% instead. Watching a primary source correct his own media coverage in real time is a good reminder of how much investing content is a game of telephone.

    The through-line that fits this site’s obsessions is his definition of success: knowing your nature and finding the best path through it. Money, he says repeatedly, has no intrinsic value, so the only interesting question is what it is for. His own answer moved with the arc of life, from freedom money measured in months of runway, to the compulsive thrill of the game, to a final phase where passing along what he knows is the joy. The happiest detail in the whole conversation might be the ocean exploration ship he lends to scientists because a normal yacht would make him uncomfortable. That is what spending aligned with nature looks like, and it is a better personal finance lesson than any allocation percentage.

    One more thing worth flagging: his hiring order of values first, abilities second, skills last lands differently in the AI era than it did when he first said it. “Maybe programmers are no longer going to be the most important people” is a striking sentence from a man who built his fortune by turning his own judgment into code. Skills are depreciating assets now, and the half-life is shrinking. What survives is the ability to adapt and the values that decide what you point the adaptability at, which is exactly the ordering Dalio has used since he hired a door-to-door Bible salesman for his research shop.

    Key Takeaways

    • Dalio started Bridgewater in 1975. In 1981-82 he calculated that heavily indebted emerging countries could not pay their debts, Mexico defaulted in August 1982, he testified to Congress predicting economic disaster, and he could not have been more wrong. He lost his own money and his clients’ money, laid off everyone, and borrowed $4,000 from his dad.
    • That bottom taught him two things: humility to balance his audacity, and how to diversify bets to substantially reduce risk without reducing returns.
    • The holy grail of investing: find 15 good uncorrelated return streams. The math says that gets rid of about 80% of your risk without reducing return, improving the return-to-risk ratio by roughly a factor of five.
    • The most common mistake smart people make in investing: they do not have a game plan.
    • His game plan method: every time he made a decision, he studied how that decision would have worked in the past, wrote it as a decision rule, and programmed it into the computer so it could be applied everywhere in the world with a known track record. Rules had to be timeless and universal.
    • The choice after going broke was a jungle metaphor: stay safe with a regular job, or cross a jungle full of things that can kill you to get the great life on the other side. He chose the jungle, with people who see things differently than he does, and then loved the jungle so much he never wanted to leave it.
    • His early financial goals were two simple levels: pay for the basics (public school was fine), then freedom money. He tracked how many months, then years, of runway he could afford if everything shut down. The number was modest, well under a million dollars.
    • He created personality tests (starting from Myers-Briggs) and gave them to Elon Musk, Bill Gates, Reed Hastings, and Muhammad Yunus. A rare type he calls the “shaper” loves going from visualization to actualization. It is his own type, and Musk’s.
    • The Elon Musk story: after making roughly $180 million from PayPal, Musk committed half of it to going to Mars with no aerospace experience. Dalio advised him to set aside a safety cushion. Musk said no, I don’t need to do that.
    • Shapers operate at the 10,000-foot level and the 10-centimeter level at once. Musk went from Mars vision to the details of a watering can with a plant on a rocket, to put “first life on Mars.”
    • The free PrinciplesYou test is online, including a feature where someone you have a relationship with takes it and it tells you about the relationship. Shaan took it expecting shaper and got explorer, which he admitted nailed him.
    • Success in life, per Dalio: knowing your nature and finding the right path for your nature, because you cannot fight against your nature.
    • People who think differently from you, who you ordinarily get annoyed at, are your paths to success. At Bridgewater, personality typing turned mutual annoyance into people understanding how to work together.
    • The success formula he wants people to hear: a shared mission, meaningful work and meaningful relationships, radical truthfulness and radical transparency, knowing your nature, and knowing how to work with others.
    • Pain plus reflection equals progress. Pain arrives involuntarily; reflection is the part people skip, which leaves them hung up in their pain.
    • He has practiced transcendental meditation since 1969: repeating a meaningless mantra crowds out thought and drops you into the subconscious, which is both calming and where creativity comes from (the hot shower effect).
    • His trained instinct treats pain as a puzzle: what does this tell me about how reality works, and what is my principle for dealing with it? Solving the puzzle yields a “gem,” a principle you carry forward.
    • He does not journal on a schedule. Reflections get written down when they come, as cause-effect if-this-then-that principles, then converted into computer code. Over about 35 years that became thousands of principles and computerized decision-making systems for markets and almost everything else. He has also published a guided journal so others can write their own.
    • Hard times test priorities. He wanted survival, opportunity, and the game, and did not care about convention or how he looked to the outside world.
    • People get stuck because they do not realize there are multiple possibilities. If you are clever, there are many ways to have a really happy life, and a lot of money is not an important ingredient.
    • There is no correlation between happiness and the amount of money you make. Money has no intrinsic value, so you must answer: what do you want to do with the money that is so important? Does it get you better friends, a better marriage, a better relationship with your kids?
    • His goals do not change yearly because his nature does not change. His phase of life changes. At 76 he feels compelled to pass along everything of value, and that is his current joy. Life has an arc, almost like a script.
    • Hiring: most people rank skills first because skills are on the resume. Dalio ranks values first, then abilities, then skills, because abilities let you change your skills, and skills go stale (“maybe programmers are no longer going to be the most important people”).
    • He once hired a door-to-door Bible salesman who knew little about finance but was curious. Most of everything is in the discovery, not in remembering the rules.
    • Talent is more important than money. Money hunts for talent: nobody made money finding Elon Musk’s capital, they made it by finding Elon Musk.
    • Origin story: a C student who did not like high school, he caddied at $6 a bag, put his caddying money into the only company he had heard of selling under $5 a share, and tripled his money when the near-bankrupt company was acquired. “I like this game.” Then he learned the game is not easy, and got hooked anyway.
    • As a kid he mailed in the tear sheets from the Fortune 500 issue to request every annual report, building a personal library of company filings.
    • Learning before puberty goes in deep, like a language or a sport. Finding your passion early, as he did and Buffett did, compounds.
    • On late bloomers: the range is huge. Ray Kroc was in his mid-50s at McDonald’s. What the winners share is drive, not a timeline.
    • Sam Parr reverse-engineered his heroes’ timelines into a target of $20 million by age 30 and hit it at 31. Dalio’s response: publish the spreadsheet, and note the wide range around the median.
    • Dalio remains instinctively frugal: reluctant to fly private, no expensive watches, inexpensive suits. But spending is a skill, and he spends on what he loves: an ocean exploration ship he gives to scientists, a passion traced to watching Jacques Cousteau and now shared with his filmmaker son.
    • He holds no beliefs that are “just beliefs,” only probability-weighted ones. On aliens: the enormity of 100 billion galaxies argues for life elsewhere, but he has not studied it, so he holds the view loosely.
    • Five big forces drive the changing world order: the debt-money-economic cycle, internal political conflict from wealth and values gaps, the geopolitical order, acts of nature (droughts, floods, pandemics have killed more people than wars), and human inventiveness, especially new technologies.
    • The post-1945 multilateral order (United Nations, World Health Organization, World Trade Organization) is, in his words, out of the picture. Without a court to resolve differences, you get conflict.
    • Bubble mechanics: wealth and money are different things. Wealth can be conjured (a $50 million raise at a billion-dollar valuation mints a paper billionaire), but you can only spend money, so when wealth holders suddenly need cash, they sell, and the bubble pricks. The trigger is typically tightening monetary policy, and could also be a wealth tax.
    • His bubble gauge, measured across countries back to about 1900, currently reads about 75% of the way to the 2000 and 1929 peaks. Japan 1990 went even higher. It predicts poor forward returns over 3 to 10 years but says nothing about timing.
    • Believing a technology will be revolutionary is not the same as the stock being a good buy. Even the most successful companies fell 80% in past bubbles. There is a Google, and there is a Yahoo.
    • The 70-75% gold rumor about his family office is “totally wrong.” He recommends 5 to 15% of a portfolio in gold as one of the uncorrelated streams, overweighted tactically when there is a debt crisis and the government is flooding the system with money.
    • Cash is not safe. It is the surest asset to do poorly over the longest period of time. Build a strategic asset allocation mix (your best balanced portfolio if you have no opinions), then make tactical bets relative to it.
    • Bridgewater became the largest hedge fund before anyone knew Dalio’s name, on roughly 11.8% a year for about 31 years, a worst year of about minus 13% (COVID), only about three losing years, and returns uncorrelated with any market. Lose 50% and you need 100% to get back; avoiding the big drawdown is the compounding engine.
    • The Principles PDF was downloaded 3 million times after Bridgewater’s “cult” reputation made him publish the culture: an idea meritocracy built on radical truthfulness and radical transparency.
    • His heroes: Paul Volcker, Lee Kuan Yew, and people who sacrifice for others. The golden rule and karma are, to him, practical rather than idealistic: a little consideration costs little and makes a world of difference in both directions.
    • The one thing to remember: know what you want, understand it is a journey of having your nature, running into your mistakes, and learning from them. Then it is all about meaningful work and meaningful relationships.

    Detailed Summary

    Going Broke in 1982 Built the Bottom Bridgewater Rose From

    Dalio opens with the story he calls the most important of his life. He founded Bridgewater in 1975, and by 1981-82 had calculated that emerging countries carrying heavy debt would default. Mexico did default in August 1982, he was invited to testify before Congress, and he predicted economic disaster. Instead the economy boomed and markets rallied. He lost money for himself and his clients, laid off his five employees, and was so broke he borrowed $4,000 from his father. The choice that followed, put on a suit and work for somebody else or keep going, “changed everything.” The two lessons: humility to balance audacity (he wanted people to kick the hell out of his ideas from then on), and diversification that reduces downside without surrendering upside. That reframing, how do I have the upside without the downside, became the foundation of everything Bridgewater later built.

    The Holy Grail: 15 Uncorrelated Return Streams

    Asked for his mantra, Dalio literally picks up a pen: find 15 good uncorrelated return streams. He derived the number from the marginal benefits of diversification at different correlation levels, a chart he still keeps as a reminder. At around 15 genuinely uncorrelated streams, roughly 80% of risk disappears without any reduction in expected return, which multiplies the return-to-risk ratio by about five. This is the closest thing to a free lunch in investing, and it is the direct, mechanical answer to the upside-without-downside question that his 1982 failure forced him to ask.

    Turning Decisions Into Rules, and Rules Into Code

    The most common investing mistake, in his view, is operating without a game plan. His fix was procedural: every time he made a decision, he went back and studied how that decision would have performed historically, wrote down the criterion, and programmed it into a computer. Then he could ask the machine to find that setup anywhere in the world, with a known track record, and assemble collections of such rules that were uncorrelated with one another. Rules had to be timeless and universal: if a rule failed in some historical period, he needed to understand why before trusting it. This is how the personal habit of reflection scaled into Bridgewater’s computerized decision-making systems, and it is why he insists the fund’s success was explainable process, not charisma.

    The Jungle, Freedom Money, and What the Money Is For

    With zero revenue and young kids, Dalio describes the choice as standing at the edge of a jungle: safety on the outside, everything he wanted on the far side, and plenty of things in between that could kill him. He went in, deliberately with people who see things differently, because together you can spot the animals. He then loved the jungle so much he did not want out even after succeeding (“you’d rather be in the jungle than the zoo”). His money goals were unglamorous: cover the basics, then bank freedom. He counted runway in months and then years of survivable shutdown. The number that meant freedom was, by his account, easy to achieve and far less than a million dollars at the time. The $20 billion came later, not from chasing a number but from playing a game he loved that happens to pay well if you play it well. Pressed on purpose, he flips the interrogation: money has no intrinsic value, so what do you want to do with it that is so important? You better answer that question.

    Shapers: Testing Elon Musk, Bill Gates, and Reed Hastings

    When Dalio decided to hand off Bridgewater’s leadership and return to pure investing, he built personality tests, starting from Myers-Briggs, and administered them to Elon Musk, Bill Gates, Reed Hastings, Muhammad Yunus, and others. A small slice of the population, which he calls shapers, love going from visualization to actualization. It is his own type. His Musk story: fresh off roughly $180 million from PayPal, Musk committed half to Mars with no aerospace experience. Dalio suggested setting aside a cushion in case it failed. Musk declined; he did not need a house, security, or even Dalio’s level of needing. Shapers also telescope between the 10,000-foot vision and 10-centimeter details, as when Musk enthused about sending a watering can with a plant on a rocket to claim first life on Mars. The tests are free online as PrinciplesYou, including a relationship feature. Shaan took it hoping for shaper and got explorer, driven by curiosity and new experiences, which he conceded was dead-on, including his indifference to details.

    Opposites as the Path to Success

    The hosts offer their own evidence: a business partner who emailed Dalio’s team 77 times over four years to land this interview, an amazing connector and supporter to whom the connection itself is the win, and a six-year podcast partnership between two people who could not be more different. Dalio pauses on it as a core success principle: the people who think differently from you, who you ordinarily get annoyed at, are your paths to success. At Bridgewater, once personality test results circulated, colleagues stopped being annoyed by each other’s types and started understanding how to work together. His compact formula: success comes from failure plus learning, and from meaningful work and meaningful relationships pursued with radical transparency by people who know their own natures.

    Pain Plus Reflection, Meditation, and the Principle-Making Habit

    Asked how reflection actually works, Dalio explains that pain comes involuntarily, and people can skip the reflection and stay hung up in the pain. Transcendental meditation, which he has practiced since 1969, is his transition tool: repeating a meaningless mantra blocks thought until the mantra itself falls away and you settle into the subconscious, the seat of emotions and the source of hot-shower creativity that cannot be muscled into existence. On top of that sits a trained habit: pain triggers the instinct “that is a lesson in reality.” The puzzle becomes how reality works and what principle best deals with it, and solving it yields a gem. He does not journal on a schedule; he writes principles when circumstances surface them, as cause-effect rules, and then encodes them. Thousands of principles over 35 years cover everything from what to do if the Fed tightens to what to do if somebody you love dies. He has published a guided journal for people who want to build their own.

    Values, Abilities, Skills: How Dalio Hires

    The Bible-salesman anecdote anchors his hiring philosophy. The man knew little about research or finance, but he was curious. Dalio’s ranking runs opposite to the resume: values first, because they define the relationship and the shared dream; abilities second, because abilities let you re-skill as the world changes; skills last, because they expire. He points at the present: programmers may soon no longer be the most important people, after a generation of parents insisting on code. The future is in discovery, not in memorizing rules, and talent identification matters more than capital, because money is always hunting for talent. Nobody got rich funding Elon Musk’s bank account; they got rich finding Elon Musk.

    From Caddy to the Fortune 500 Library

    Young Dalio was a C student on academic probation at C.W. Post who loved one thing: markets. Caddying at $6 a bag in an era when even barbers talked stocks, he put his earnings into the only company he had heard of trading under $5 a share, on the naive theory that more shares meant more money. The nearly bankrupt company was acquired, the stock tripled, and he concluded “I like this game.” He then learned, and says he still knows, that the game is not easy, but he was hooked. With no peers doing the same, he built his own curriculum by mailing in the Fortune 500 tear sheets to request every company’s annual report, assembling a personal library. He notes that what you learn before puberty goes in deep, and that finding a consuming interest young, as Buffett did (Sam references reading The Snowball), is a form of luck. Unlike Buffett’s pinball-and-racetrack hustles, Dalio’s only side racket was feeling golf balls out of the pond with his feet and reselling them. On timelines, he pushes back on the late-bloomer framing: the range is enormous, Ray Kroc was in his mid-50s, and the common denominator is drive, not a schedule.

    The Five Big Forces and the Changing World Order

    Dalio rejects the split between philosophy and finance: as a global macro investor, they are the same subject. Because he had never seen certain events in his lifetime, he studied the last 500 years and found recurring cycles in which monetary, political, and geopolitical orders break down for the same reasons, the argument of his book Principles for Dealing with the Changing World Order. Five measurable forces interact: the debt-money-economic force, where debt service squeezes spending like plaque in a circulatory system until restructuring; internal political conflict, where widening wealth and values gaps produce irreconcilable differences and threaten democracy; the geopolitical order, where the 1945 American-led multilateral system (UN, WHO, WTO) has effectively left the picture, and without a court, differences get resolved by fighting; acts of nature, since droughts, floods, and pandemics have historically killed more people than wars; and human inventiveness, the persistent upward force that raises life expectancy and productivity. News lasts a minute; the point is putting the news in the context of where these five forces stand.

    The Bubble Gauge at 75%, Gold, and the Mechanics of Bubbles

    Sam asks about the rumor that Dalio’s family office holds 70 to 75% in gold ETFs: “Totally wrong.” His actual guidance is 5 to 15% of a portfolio in gold as an uncorrelated stream, overweighted tactically when a debt crisis has the government flooding the system with money. The larger framework: build a strategic asset allocation mix, the best balanced portfolio you can hold with no opinions, and it will not be cash, which people mistake for safe when it is the surest to underperform over long periods. Then he walks through bubble mechanics. Wealth and money are different: paper wealth can be minted by a small raise at a big valuation, but only money can be spent, so when wealth must convert to cash, prices break. Bubbles form around genuinely exciting new technologies, funded with borrowed money, when buying becomes the rage, and believing in the technology is not the same as the stock paying off; in past bubbles even the best companies fell 80%, and for every Google there is a Yahoo. His bubble gauge, running across countries back to about 1900, currently reads about 75% of the way to its 2000 and 1929 readings (Japan 1990 exceeded both). That predicts poor returns on a 3-to-10-year horizon but not timing; timing comes from the prick, typically tightening monetary policy, or anything like a wealth tax that forces wealth into cash. He adds, carefully, that he does not want people trading on this; the point is that everything has mechanics.

    Why Bridgewater Actually Became the Biggest

    Was it performance or marketing? Dalio’s answer: Bridgewater most consistently made excellent returns with minimal risk, uncorrelated with any market, about 11.8% a year for roughly 31 years under his management, with only around three losing years, the worst about minus 13% in the COVID year. Because a 50% loss requires a 100% gain to recover, never taking the big drawdown was the compounding engine. He became the largest before anyone knew his name and was actively trying to stay below the radar. Fame arrived only when the fund’s size and its culture, perceived from outside as a cult, pushed him to publish the Principles document explaining the idea meritocracy of radical truthfulness and radical transparency. It was downloaded 3 million times and became the book Principles. Clients stayed because the process was explainable, backtested, and logical, and because Bridgewater taught them as partners rather than selling them a black box.

    Etched in Stone: Heroes, the Golden Rule, and the One Takeaway

    Shaan describes visiting Rockefeller Center and reading John D. Rockefeller Jr.’s credo carved in stone, “I believe in the sacredness of a promise, that a man’s word should be as good as his bond.” Dalio seizes on it: we are short of shared principles the way we are short of heroes. Everybody should write down their principles, have the hell kicked out of them, and be judged by whether they live by them. His own heroes include Paul Volcker and Lee Kuan Yew, and more broadly anyone who sacrifices for others. Across all religions he finds one commonality, the golden rule or karma, and he frames it as practical rather than idealistic: it costs little to help each other and it compounds, while selfishness and fighting are mutually destructive. The question for humanity is whether we can rise above ourselves. Asked for the single takeaway, he answers: know what you want, understand that the journey is your nature running into your mistakes and learning from them, and remember it is all about meaningful work and meaningful relationships. If you have work you love and relationships you love, you are probably going to have a great life.

    Notable Quotes

    “Here’s the mantra for investing. This is the holy grail of investing. Find 15 good uncorrelated return streams.”

    Ray Dalio, delivering the core lesson of the entire conversation

    “If you can get out to 15, you can reduce about 80% of your risk without reducing your return. That means that you increase your return to risk ratio by something like a factor of five.”

    Ray Dalio, on the math behind the holy grail

    “First of all, I learned humility to balance my audacity.”

    Ray Dalio, on what going broke in 1982 taught him

    “Pain plus reflection equals progress.”

    Ray Dalio, on the formula that turned his failures into principles

    “Success is you knowing your nature and then finding the best path through that nature.”

    Ray Dalio, giving his definition of success

    “Money doesn’t have any intrinsic value, right? So, you have to have a purpose. Why are you getting the money? What do you want to do with the money that is so important? You better answer that question.”

    Ray Dalio, pushing back on “making it to the top”

    “Cash always is the worst performing over a period of time. People think it’s the safest. It’s the surest to do poorly over the longest period of time.”

    Ray Dalio, on why a balanced portfolio beats sitting in cash

    “The bubble gauge is saying it’s about 75% toward where it was both in 2000 and 1929. So, it’s pretty high up there.”

    Ray Dalio, on where his bubble indicator stands today

    “It became the biggest hedge fund because we most consistently made excellent returns with minimal risk and we were uncorrelated with the stock market or any other market.”

    Ray Dalio, answering whether Bridgewater’s size came from performance or marketing

    “If you have work that you love and you’ve got relationships that you love, you’re probably going to have a great life.”

    Ray Dalio, closing the conversation with the one thing to remember

    Watch the full conversation with Ray Dalio on YouTube here.

    Related Reading

    • Principles.com Ray Dalio’s official site, home of the free principles resources he references throughout the interview.
    • PrinciplesYou the free personality assessment Dalio built and gave to Elon Musk, Bill Gates, and Reed Hastings, including the relationship comparison feature.
    • Bridgewater Associates (Wikipedia) background on the firm’s history, the All Weather strategy, and the idea meritocracy culture.
    • Transcendental Meditation (Wikipedia) the mantra-based practice Dalio has used since 1969 as his bridge between pain and reflection.
    • Purpose our pillar page on the question Dalio keeps asking: what is the money for, and what do you actually want?

  • Tim Ferriss and Kevin Rose Random Show: Mortality and Grief, Zen Insights, Rock Climbing at 50, LSD for Anxiety (MM120), AI Smart Homes, and Why You Should Buy the Company Instead of the Product

    Tim Ferriss and Kevin Rose reunite over tequila for another Random Show, and this one swings from the heaviest material they have covered in years (the death of their friend Om Malik, aging parents, dementia, and what grief actually is) to Zen retreat breakthroughs, rock climbing as a post-50 obsession, a phase 3 LSD trial for anxiety, AI-powered smart homes, the coming wave of AI IPOs, and the single investing lesson both keep relearning: let your winners run, and when you love a product, buy the company.

    TLDW

    Kevin reframes the loss of Om Malik and his father through a simple equation: grief is love with nowhere to go, and the sorrow is proof of how lucky you were. Tim adds Tim Urban’s “The Tail End” math (you have spent roughly 95% of your lifetime hours with your parents by high school graduation) and Sam Harris’s “The Last Time” meditation. Kevin recounts a micro-awakening at a five-day silent Zen retreat (“nothing lacking”), both plug their meditation app The Way with Henry Shukman, and Tim declares multi-pitch climbing in Yosemite his next deliberate-practice obsession, complete with hangboard protocols and grip-training gear. The health segment covers A2 whey, venison organ-meat sticks as a multivitamin, the 1,3-butanediol ketone controversy, ketones temporarily unlocking speech in relatives with dementia, terminal lucidity, a JAMA phase 3 trial of MM120 (lysergide) showing 12 weeks of anxiety relief from a single dose, and the Norwegian 4×4 protocol whose hippocampal benefits may persist for five years. The AI segment runs from Kevin’s Claude-coded camera system that opens his gate via license plate recognition, to Tim’s 20-year angel investing retrospective built with Claude Code and the Gmail API, to their handicapping of Google versus Anthropic versus OpenAI, China’s open-source push, local inference boxes, and why buying at IPO and holding may match venture returns.

    Thoughts

    The emotional spine of this episode is the best thing in it. Kevin’s formulation, that the gap left by a death “is just love at the end of the day,” is not new philosophy, but it lands differently coming from someone actively managing a dying dog, a mother with dementia, and a friend’s fresh death, all in the same month. The practical corollary the two keep circling is time-boxing: Tim Urban’s Tail End math and Sam Harris’s “last time” framing both convert vague mortality awareness into a scheduling problem. Tim credits one short blog post with causing years of family trips that his emotionally reserved family would never have taken otherwise. That is about as strong an endorsement as content can get: it changed the calendar, not just the mood.

    The health middle of the show is classic Random Show in that the interesting part is the epistemology, not the products. Tim flags that the loudest critics of 1,3-butanediol ketones sell competing ketone salts, applies a shelf-life heuristic to processed meat instead of memorizing ingredient lists, and treats organ-meat sticks as a dosed multivitamin rather than a diet. The MM120 discussion is the meatiest science: a five-arm randomized trial where a single 100 microgram dose of lysergide produced roughly twelve weeks of relief in generalized anxiety disorder, which Tim, who has been diagnosed with GAD and OCD, reads as a plausible future where anxiety treatment is episodic rather than daily. The unresolved tension they name honestly: the promising dementia signals (ketones, psilocybin case reports, microdosing) all crash into the consent problem. A person who cannot consent cannot sign up for a hallucinogen, and “it might give you half a day of real conversation back” is both a miracle and an ethical minefield.

    The AI section quietly contains one of the more useful predictions frameworks going: Kevin’s argument that Google’s confusing high-bandwidth TPU architecture only makes sense as a bet on continuous learning, where models stop shipping as discrete releases and start improving around the clock like a child. If self-improving models are really 12 to 18 months out, the “model drop” news cycle this episode itself participates in (new Sonnet today, Mythos tomorrow) is a temporary artifact. Tim’s counterweight is human-scale and more sobering: an AI trained on your own writing produces in 30 seconds what takes you 30 hours, and he compares the demoralization to Lee Sedol retiring after AlphaGo. His book sales chart, stable for a decade and then compounding downward every year since ChatGPT launched, is the receipts. The tension between “AI made my 20-year retrospective possible” and “AI is draining my motivation to write” is the honest version of the AI discourse most podcasts flatten into one direction.

    The investing segment is the most immediately actionable. Three ideas stack neatly: let winners run (Tim has lost more money selling early than he made buying), the venture-returns myth (a famous firm’s own analysis found that buying at IPO and holding a decade roughly matched their gains from early rounds through lockup), and buy-what-you-use (the friend who spent $100k on a top-of-the-line Tesla instead of Tesla stock forfeited roughly $15 million; teenage Tim bought Pixar after seeing Toy Story). None of this is sophisticated, which is the point both make explicitly: with Anthropic and OpenAI racing to IPO, ordinary people who use these tools daily will get a shot the private markets never gave them, and the discipline that matters is holding, not access.

    Key Takeaways

    • Kevin and Tim lost their friend and colleague Om Malik of True Ventures within the past week; Kevin found out mid-way through a five-day silent meditation retreat.
    • Kevin’s reframe on grief: the severe sense of loss is “just love at the end of the day.” The gaping hole his father’s death left is love manifested through sorrow, and recognizing that converts anguish into gratitude for having crossed paths at all.
    • Tim credits Matt Mullenweg twice: for organizing the Antarctica trip where he got days of uninterrupted time with Om (including a visit to an emperor penguin colony), and for sending him Tim Urban’s blog post “The Tail End.”
    • The Tail End’s core math: by high school graduation you have used up roughly 90 to 95% of the total in-person hours you will ever spend with your parents. Reading it drove Tim to organize regular family trips, awkwardness be damned, before his father’s mobility declined.
    • Sam Harris’s short meditation “The Last Time” pairs with it: for many activities you will do a last time without knowing it was the last time.
    • Kevin’s 15-year-old dog Toaster had a violent shaking episode (a stress syndrome after standing six hours at a vet visit, not a terminal event), and Kevin’s takeaway from being covered in the aftermath was that when you love an animal that much, none of it matters.
    • At a traditional Zen sesshin with Henry Shukman and his visiting Japanese teacher Yamada Roshi, Kevin had a two-second micro-insight while working his koan: a felt sense of “nothing lacking,” where nothing could be added or taken away because everything was already fully present. Not an emotion, a steady state.
    • Both are investors in The Way, Henry Shukman’s single-path guided meditation app, which they frame as an ideological investment like their funding of the dog aging study on rapamycin. Tim’s favorite sessions: “Whole Earth is Medicine” and “This Too is Me.”
    • Tim’s practical meditation pitch: you do not need a retreat; 10 minutes twice daily works, and there seems to be real alchemy in the twice-a-day rhythm. Kevin, once the guy who quit everything in two weeks, is coming up on five years of consistent practice.
    • A physiology aside: Henry’s instruction to drop the jaw slightly mirrors how Tim’s mandibular snoring device works. Dropping the jaw an eighth of an inch down and forward opens the airway. The ancients found it by trial and error.
    • Kevin, approaching 50, wants to stop saying “one day” about his bookmarked obsessions (Japanese woodworking, ships in bottles) and actually commit to things in the next two decades.
    • Tim’s next deep dive is rock climbing: his surgically repaired right elbow finally allows it, and his stretch goal is multi-pitch climbing in Yosemite despite being, in his words, deadly terrified of heights, sweaty palms included.
    • Tim’s philosophy of training: “training to not die sooner than is necessary” is not a sufficient goal. He needs a concrete deadline event, the way the Lancaster Classic structured his archery, to make deliberate practice worth it.
    • What sold Tim on climbing longevity: the 60-to-almost-80-year-olds at Salt Lake City gyms climbing 5.11+ on weekday mornings, out-performing what he could imagine doing, plus women who cannot do five pull-ups climbing 5.13 and 5.14 on pure technique.
    • Climbing is also social in a way archery never was: bouldering routes are literally called “problems,” and strangers trade beta. After decades of solitary repetition, Tim has hit his quota.
    • Training tools discussed: Michael Eckert’s finger-strength course (the multiple-time pull-up world champion Kevin just bought into), the Nug (a pocket-size wooden grip trainer Tim travels with), and Abrahangs, Emil Abrahamsson’s protocol of moderate partial-bodyweight hangs, 10 seconds on and 50 seconds off for 10 minutes twice a day, which produces outsized forearm and finger gains.
    • Tim’s fantasy recommendation: The Blade Itself, whose treatment of the randomness of death (a friend of Tim’s just died in a plane crash) doubles as a gratitude practice. The audiobooks are exceptional.
    • Protein talk: Kevin likes Pioneer Pastures A2 whey (30 grams a shake, lactose removed, no investor relationship); Tim gets roughly 40% of his protein from Maui Nui wild-harvested axis deer venison and treats the liver-and-heart pepper sticks as a two-or-three-a-week multivitamin.
    • On processed meat and nitrates, Tim’s heuristic is shelf life: if an ultraprocessed meat lasts three years on a shelf, raise an eyebrow. Minimally processed meat almost definitionally does not keep.
    • Exogenous ketones containing 1,3-butanediol may carry liver toxicity risk, though Tim notes many people pushing that claim sell competing ketone salts. His personal policy: use them intermittently, not daily.
    • The startling ketone anecdote: given to relatives with dementia, sentence length roughly 5xed within 20 minutes. Caveats: it tastes like gasoline, and 1,3-butanediol can affect balance, a serious concern when a broken hip is often the beginning of the end for older adults.
    • Kevin moved his mother, who has non-Alzheimer’s (likely vascular) dementia, into a new home equipped with an AI radar orb that detects falls instantly. She cannot recall breakfast but knows who he is, which he will take all day long.
    • The exercise-for-brain-health protocol Tim assembled with neuroscientist Dr. Tommy Wood: Norwegian 4×4 VO2 max intervals (4 minutes on, ~3 minutes off, 4 rounds) three times weekly for five to six months produces volumetric changes in the hippocampus that appear to last up to five years.
    • The only bike Tim can tolerate for it is the Kaiser M3i indoor bike, because the handlebars raise enough to spare his lower back. Kevin’s sustainable alternative: incline treadmill walking while playing Duolingo chess until 40 minutes disappear. Tim’s version of don’t-let-perfect-be-the-enemy-of-good: a 5-minute, three-set gym session still counts.
    • The JAMA study that grabbed Tim: a phase 3, five-arm randomized trial of MM120 (lysergide, essentially LSD, from the company formerly known as MindMed) for generalized anxiety disorder. Effects were dose-dependent, with 100 micrograms (a standard full trip) as the apparent minimum effective dose, and relief persisting through 12 weeks after a single treatment.
    • Mid-conversation they discover the trial ran at Neuroscape at UCSF, their friend Adam Gazzaley’s lab, which Kevin helped fund. Tim, clinically diagnosed with GAD and OCD, finds 12 weeks of relief from one dose remarkable.
    • Related dementia signals: a case report of an elderly Japanese woman with dementia who took a five-gram “heroic dose” of psilocybin mushrooms, slept 19 hours, and woke temporarily capable of full expositional conversation instead of monosyllables; Tim has also seen an unpublished case report of LSD microdosing producing similar verbal fluidity.
    • Both note the hard ethics: hallucinogens for someone who cannot consent, the devastation of a bad trip you inflicted, versus the possibility of half a day of real connection or slowed decline.
    • Terminal lucidity, the well-documented phenomenon of vegetative or unresponsive patients becoming fully lucid in their final days, leaves both baffled: if cognition is fully localized in a structurally deteriorated brain, where is the lucidity coming from? Kevin’s analogy: we assume nothing is backed up to the cloud.
    • Tim’s caffeine pacing hack: Nutonic nootropic toothpicks (a gift from Chris Williamson), roughly 20 to 25 milligrams of caffeine each, a hard ceiling per toothpick that prevents his chain-refill coffee problem.
    • Kevin’s AI smart home: his Ubiquiti camera system has a full API, so with Claude writing the glue code, the cameras now recognize individual people (and Toaster, who gets a dog emblem), play deterrent audio at loiterers in his alleyway, and open his gate automatically when they read his license plate. The camera costs about $200; anyone can do this now.
    • Tim’s flagship AI project: a 20-year retrospective of his angel investing, built with Claude Code and the Gmail API, testing his own stories about his batting average against hard data. Doing it manually would have taken a year of full-time work by multiple people.
    • The humbling adjacent stat from Kevin: friends with always-on AI wearables report that about 70% of what we confidently remember is what actually happened. Startup genesis stories are the same phenomenon, a five-minute bit polished until the teller believes it.
    • Tim’s most valuable everyday AI use: holistic health cross-checking (contraindications between medications and supplements, could A explain D), hallucination-limited by fact-checking across multiple LLMs.
    • Tim’s contrarian AI take: for most people the honest impact is small “because most shit isn’t worth doing in the first place.” Doing something well does not make it worth doing, and AI is skyrocketing the volume of efficiently produced BS.
    • The demoralization is real, though: an AI trained on your writing produces in 30 seconds what takes 30 hours. Tim compares it to the top Go player who lost the joy of the game after AlphaGo, and his all-format book sales have compounded downward every year since ChatGPT launched (roughly -5%, then -28%, then -49%, tracking toward -67%).
    • The prompt experiment both loved: with cross-conversation memory enabled, ask your model “What are three to five rewarding paths I might explore in the next five years?” Tim sent the answers to close friends who called them outstanding, including a non-book business idea Kevin urged him to build. Ask AI open-ended questions the way you would ask a close friend, not robot questions.
    • Kevin is prototyping “Bond,” an app built from scanned values-card decks: swipe to surface your core values, form explicit agreements with partners and friends that both sides “shake” on, weight the damage of a broken bond, and accumulate a trust ledger. He calls the underlying idea dark information: real relational data (trust, reliability, empathy) that exists everywhere but has never been given physical form.
    • Tim’s writing unlock for the blank page: dictate a rambling brain dump into Wispr Flow while walking, drop it into Claude to clean up, and uncomfortable procrastinated emails come together in minutes. Gear notes: Shokz OpenMeet bone-conduction headset (open ears for traffic, recommended by Exploding Kittens co-founder Elan Lee) and a Sennheiser lav mic plus the Ferrite app as a pocket recording studio that beats studio mics in echoey hotel rooms.
    • State of AI, per both: the big three are Google, Anthropic, and OpenAI, with X/Grok never count-out-able (though Anthropic and Google buying excess Colossus capacity suggests weak Grok demand; Kevin still values Grok’s X-API grounding and uses it heavily for Digg). Meta has phenomenal assets but, Kevin thinks, not the talent to keep pace. Apple is quietly a couple of years out.
    • Kevin’s Google thesis: they own the full stack (TPUs, data centers, models, Android’s install base), and their confusingly high-bandwidth chip architecture is a bet that the future is continuous learning, models improving 24/7 like a child rather than shipping as discrete releases. Consensus estimates put self-improving models 12 to 18 months out.
    • Kevin’s insider color: touring Google X with Sergey Brin and Bill Maris a decade-plus ago, he saw Waymos years before the public knew. Google is sitting on roughly five years of undisclosed deck and holds back frontier models partly for cost and partly to avoid government intervention. In 12 months we will know where Google really stands.
    • Counterweights: ChatGPT owns consumer mindshare and OpenAI must crack advertising, which is very hard; Anthropic is reportedly the fastest-scaling enterprise business ever but keeps taking hits from the administration; no frontier lab will remain unconstrained by government; and China is releasing open-source models on par with the frontier (“doing it the American way”), while AMD’s ~$4,000 local inference box can run massive models at home, eight months behind the frontier, which for many users is fine.
    • The investing lessons: let winners run (Tim: “I’ve lost more money by selling stocks early than I’ve ever probably made buying the original stock”); a famous venture firm’s internal analysis found buying at IPO and holding roughly 10 years matched their gains from early-stage investing through post-lockup; and buy the company, not just the product. Kevin’s friend David Prager spent $100k on a maxed-out Tesla instead of Tesla stock, forgoing roughly $15 million. Tim’s first stock, at about 15 years old, was Pixar, bought because Toy Story convinced him animation was the future.
    • Kevin relaunched Digg: from 20,000 weekly users to nearly 500,000 and millions of monthly page views, pulling the zeitgeist from X and other feeds with heavy AI curation rather than trying to build another social network.

    Detailed Summary

    Grief, the Tail End, and the Last Time

    The show opens with banter about alcohol taxes and ketamine before turning serious: Toaster, Kevin’s 15-year-old dog, just had a terrifying (ultimately survivable) collapse, and the pair lost their friend Om Malik of True Ventures within the week. Kevin, who got the news at a silent retreat, offers the episode’s emotional thesis: the loss and sorrow are the shape love takes when the person is gone, and he would not trade the chaos of caring for people and animals for a calmer, emptier life. Tim thanks Matt Mullenweg for the Antarctica trip that gave him days of psychologically naked time with Om, and for sending him Tim Urban’s “The Tail End,” the post whose parents-time math pushed Tim into years of deliberate family trips before his father needed a wheelchair. Sam Harris’s meditation “The Last Time” extends the theme: you rarely know a last time is the last time. Kevin’s response is to do the thing one more time anyway, bouncy-house backflips at 49 included.

    Zen, Nothing Lacking, and The Way

    Kevin describes his five-day traditional Zen sesshin with Henry Shukman and Yamada Roshi: wall-gazing with eyes open, koan practice on the out-breath, and private interviews with the Roshi. His micro-insight, about two seconds long, was a non-emotional steady state of “nothing lacking,” everything fully present with nothing to add or subtract, what Zen calls the removal of the veil. Tim relays his favorite sessions from The Way (the app both back as a philosophical investment, like the rapamycin dog aging study): “This Too is Me,” which dissolves the burden of a squirrel-chasing mind by including everything experience serves up as you, and Henry’s small physical instructions, like dropping the jaw, which Tim connects to his mandibular snoring device: an eighth of an inch down and forward opens the airway. His bottom line: 10 minutes twice a day captures most of the benefit, and watching the formerly two-weeks-and-out Kevin sustain five years of practice has been deeply reassuring.

    Rock Climbing as the Next Decade’s Project

    Kevin, marching toward 50, wants to stop bookmarking dreams (Japanese woodworking, ships in bottles) and start doing them. Tim’s answer is rock climbing: his repaired right elbow finally allows it, and his stretch goal is multi-pitch in Yosemite despite sweating through his palms at the mere thought of heights. What converted him was the Salt Lake City gym crowd at 11 a.m.: retirees in their 60s and 70s climbing 5.11+, inverted on overhangs, evidence that this sport rewards technique and consistency over youth (women who cannot do five pull-ups climb 5.13). After archery, which he loved but found definitionally solitary, climbing’s social “beta”-trading culture is the draw. The training stack: Michael Eckert’s finger-strength course, the Nug pocket grip trainer, and Abrahangs (Emil Abrahamsson’s 10-seconds-on, 50-off, 10-minute, twice-daily hang protocol). A darker aside grounds the ambition: a friend of Tim’s just died in a plane crash, and The Blade Itself keeps teaching him that life-or-death is often dumb luck.

    Protein, Ketones, and the Dementia Frontier

    The supplements run: Kevin’s new favorite is Pioneer Pastures A2 whey (30 grams, lactose removed, gut-friendly); Tim, disclosure-forward as always, travels with Maui Nui venison and treats the liver-and-heart sticks as a twice-weekly multivitamin. On processed meat, Tim’s heuristic is shelf life over ingredient forensics. The exogenous ketone conversation is more fraught: 1,3-butanediol may stress the liver (though the claim’s loudest advocates sell competing ketone salts), so Tim doses intermittently. The astonishing part: given to relatives with dementia, ketones 5xed sentence length within 20 minutes, going from non-answer answers to full paragraphs, “offline to online.” Balance risks make it dicey in exactly the population that needs it. Kevin’s mother’s new care home uses an AI radar orb for instant fall detection. For prevention, Tim’s protocol from conversations with Dr. Tommy Wood: Norwegian 4×4 VO2 max intervals three times a week for five to six months, whose hippocampal volumetric changes appear to persist up to five years, done on the one bike (Kaiser M3i) that does not wreck his back. Kevin’s sustainable version: incline treadmill plus Duolingo chess.

    MM120, Psilocybin Case Reports, and Terminal Lucidity

    Tim walks through the JAMA-published phase 3 trial of MM120 (lysergide, effectively LSD) for generalized anxiety disorder: five arms (placebo, 25, 50, 100, 200 micrograms), dose-dependent response, with 100 micrograms reading as the minimum effective dose and relief lasting through the 12-week measurement window from a single supervised treatment. Kevin clicks through mid-show and discovers it ran at Neuroscape at UCSF, their friend Adam Gazzaley’s lab, which Kevin helped fund. For Tim, clinically diagnosed with GAD and OCD, episodic rather than daily treatment is the headline. The dementia thread continues: a case report of an elderly Japanese woman who took five grams of psilocybin mushrooms, slept 19 hours, and woke into temporary full conversation; an unpublished LSD microdosing report with similar verbal fluidity. Both wrestle with consent ethics. And then terminal lucidity, the documented phenomenon of unresponsive patients becoming fully lucid days before death, which neither can explain: as Kevin puts it, if it is all localized in a deteriorated brain, where is that coming from?

    AI at Home and AI on Yourself

    Kevin’s Ubiquiti camera system, glued together with Claude-written code against its API, now recognizes faces (and Toaster), scolds loiterers through a speaker, and opens his gate when it reads his license plate, all on a $200 camera. Tim’s project is introspective: a Claude Code plus Gmail API retrospective of 20 years of angel investing, checking who made which introductions, what he passed on, and whether his stories about his batting average survive contact with data (they mostly did; he missed fewer explicit opportunities than he feared). Kevin cites friends with always-on AI wearables: about 70% of what we confidently remember is accurate. Tim’s daily-driver use is health: cross-referencing medications, supplements, and symptoms across multiple LLMs. His caution: most tasks AI accelerates were not worth doing, and the volume of efficient BS is skyrocketing. His countervailing enthusiasm: the “what should I do in the next five years” prompt with cross-conversation memory produced ideas good enough to deeply inform his next chapter. Ask it questions like a close friend. Kevin’s next experiment is “Bond,” a values-and-trust app for making implicit relational agreements (what he calls dark information) explicit, trackable, and reflective. Tim’s practical writing unlock: Wispr Flow voice dumps cleaned up by Claude, especially for procrastinated uncomfortable emails, recorded on a Shokz OpenMeet bone-conduction headset.

    The AI Landscape and Where the Money Goes

    Recorded the day a new Anthropic Sonnet launched, with Mythos due the next day, the forecasting segment lands on a big three of Google, Anthropic, and OpenAI. Kevin’s Google case: full-stack ownership (TPUs whose high-bandwidth architecture only makes sense as a bet on continuous, 24/7 self-improving learning, expected within 12 to 18 months), Android distribution, data center expertise, billion-dollar engineer retention, and a five-year hidden deck he glimpsed touring Google X with Sergey Brin and Bill Maris before Waymo was public. Google holds frontier models back for cost and regulatory reasons; within a year we will know what they have. OpenAI owns consumer mindshare but must solve ads; Anthropic is crushing enterprise ARR while absorbing slaps from the administration; no lab escapes government constraint; China’s open-source frontier-parity models and AMD’s ~$4,000 local inference box threaten the subscription model from below. The investing translation: these companies are going public, and ordinary users will finally get access. The lessons both preach: let winners run, remember that buying at IPO and holding a decade roughly matched one famous firm’s venture returns, and buy the company behind the product you love, the lesson of Prager’s $15 million Tesla and teenage Tim’s Pixar shares. Kevin closes with Digg’s relaunch (20,000 to nearly 500,000 weekly users) and Tim with the sobering chart of his AI-era book sales, compounding downward since ChatGPT.

    Notable Quotes

    “I realized that that gap is just love at the end of the day because I wouldn’t have it unless I loved this man so much. I cared for this person so much. How lucky am I to have crossed paths with this person to get to know them?”

    Kevin Rose, on losing Om Malik

    “When I lost my dad, like that is just a gaping hole of love manifested through sorrow and sadness.”

    Kevin Rose, on grief as a consequence of deep love

    “I had a sense of nothing lacking. Nothing needed to be added and nothing even possibly could be added and nothing possibly could be taken away because everything at that moment was full in the way that it should be.”

    Kevin Rose, describing his micro-insight at the Zen retreat

    “Training to not die sooner than is necessary is not sufficient for me.”

    Tim Ferriss, on why he needs concrete physical goals like multi-pitch climbing in Yosemite

    “Doing something well does not make it important or worth doing in the first place.”

    Tim Ferriss, on AI’s honest impact when most tasks were never worth doing

    “I can still write, but what they can do in 30 seconds is what would take me 30 hours. And I’m just like, it really drains the motivation for me to put in those 30 hours.”

    Tim Ferriss, on AIs trained on his own writing

    “It’s not about those new models dropping. It’s about just like a child learning. Tomorrow it’ll be better than today for forever.”

    Kevin Rose, on Google’s bet that continuous learning replaces the model-release cycle

    “You got to let your winners run as long as possible. I’ve lost more money by selling stocks early than I’ve ever probably made buying the original stock.”

    Tim Ferriss, the takeaway from his 20-year angel investing retrospective

    “You find something that you love and you buy said object when you should actually buy the company.”

    Kevin Rose, on the $100k Tesla that should have been $15 million of Tesla stock

    Watch the full conversation between Tim Ferriss and Kevin Rose here on YouTube.

    Related Reading

    • The Tail End (Wait But Why) the Tim Urban post that quantifies how little time you have left with the people you love.
    • The Way Henry Shukman’s single-path guided meditation app that both Ferriss and Rose back and use daily.
    • Terminal lucidity (Wikipedia) background on the end-of-life phenomenon neither host can explain.
    • LSD (Wikipedia) context for MM120/lysergide and the history behind the generalized anxiety disorder trial.
    • The Botany of Desire by Michael Pollan, the book Tim cites on how dogs (and plants) co-domesticated us as much as we domesticated them.

  • Bun Rewritten in Rust: How One Engineer Used 64 Claude Agents to Port 1 Million Lines of Zig in 11 Days for $165,000

    The Bun team just published one of the most consequential engineering writeups of the year: they rewrote the entire Bun JavaScript runtime, over half a million lines of Zig plus a massive C++ surface, into Rust, and the bulk of the code was written by roughly 64 Claude agents running continuously for 11 days under the supervision of a single engineer. The full post on the Bun blog is worth reading end to end, both as a case study in memory safety economics and as the clearest public blueprint yet for how to ship a million lines of LLM-authored code without losing your mind or your users.

    TLDR

    Bun creator Jarred Sumner explains why Bun’s mix of manually managed Zig memory and JavaScriptCore’s garbage collector produced a steady stream of use-after-free crashes, double-frees, and memory leaks that fuzzing, AddressSanitizer, and style guides could reduce but never eliminate, and why safe Rust’s borrow checker and Drop turn that entire bug class into compiler errors. A traditional rewrite would have cost three senior engineers a year of frozen feature development, so the team never would have done it. Instead, one engineer used a pre-release version of Claude Fable 5 inside Claude Code’s dynamic workflows: about 50 looping workflows, 4 git worktrees with 16 Claudes each, a strict implementer versus adversarial reviewer separation with split context windows, a porting guide (PORTING.md) and a lifetime map (LIFETIMES.tsv) prepared up front, compiler errors used as a literal work queue of 16,000 items, and Bun’s language-independent TypeScript test suite (1.38 million expect() calls) as the acceptance gate. Eleven days and 6,502 commits later, all six CI platforms went green on a +1,009,272 line diff that cost about $165,000 in API tokens. The result, shipping as Bun v1.4.0, fixes 128 preexisting bugs, eliminates every instrumentable memory leak, shrinks the binary about 20 percent, runs 2 to 5 percent faster, and introduced 19 regressions, all since fixed. Claude Code itself now runs on the Rust port and barely anyone noticed.

    Thoughts

    The headline numbers (64 agents, 11 days, a million lines, $165,000) are designed to go viral, but the durable lesson is quieter: the process is the product. Almost nothing in this writeup is about prompting brilliance. It is about organizational design applied to machines. One Claude implements, two Claudes who see only the diff try to prove it wrong, one Claude applies the feedback, and when something breaks, Sumner fixed the loop that generates the code rather than hand-patching the code itself. That last move is the one most teams will miss. Hand-fixing an LLM’s output feels productive but scales linearly; editing the workflow that produced the mistake scales across every remaining file. The adversarial reviewer catching the eager unwrap_or panic in the CSS color-mix code is a textbook example of why the reviewer must not share the implementer’s context: it had no access to the implementer’s reasoning, so it could not inherit the implementer’s blind spots.

    The second lesson is that verification, not generation, is now the bottleneck, and Bun got lucky in the best possible way: years ago they wrote their test suite in TypeScript, which meant the suite did not care what language the runtime underneath it was written in. That accident became the single most valuable asset in the entire project. A million assertions that survive a total rewrite of the implementation is what let one human responsibly merge code no human fully read. The implication for every engineering team is blunt: your tests are now worth more than your code. Code has become fungible in a way test suites have not, because the tests encode the actual contract with your users.

    Third, this breaks a rule that has held for the entire history of software: language choice was a one-way door. Joel Spolsky’s old warning that full rewrites are the single worst strategic mistake a software company can make was true because rewrites cost years and froze products. Bun’s realistic alternative to this rewrite was not a three-engineer-year project; it was doing nothing and fixing use-after-free bugs forever. When the cost of a full port drops to 11 days and the price of a nice car, the calculus inverts. Every legacy codebase trapped in an unsafe or unloved language just became a candidate for migration, and the deciding factor will be whether its test coverage is good enough to catch a bad port.

    The honest caveats matter too. Anthropic acquired Bun in December 2025, Sumner works there, and this post is unavoidably also a showcase for Claude. The disclosure is right at the top, which is to their credit. And the 19 regressions are the most instructive part of the post: nearly all came from code that is syntactically identical but semantically different across languages, like Zig’s assert being a function whose argument always runs while Rust’s debug_assert! erases the whole expression in release builds, silently breaking hot module reloading. A human porting that line would have made the same mistake. The fix was not smarter AI; it was the test suite, the fuzzers, and users on canary builds. This was not push-button autonomy. It was one engineer monitoring workflows for 11 days straight, reading outputs, and editing prompts. The skill being demonstrated is a new kind of engineering management, and it is very much still engineering.

    Key Takeaways

    • Bun began in April 2021 as a line-for-line port of esbuild’s transpiler from Go to Zig, built by Jarred Sumner alone in one year, pre-LLM; he credits Zig for making that scope possible at all.
    • Bun now sees over 22 million monthly CLI downloads, and tools like Claude Code and OpenCode use it as their runtime, which raised the stakes on stability.
    • A single patch release, v1.3.14, fixed a laundry list of heap use-after-free crashes, double-frees, out-of-bounds writes, and memory leaks across node:zlib, node:http2, UDP sockets, Buffer, crypto, TLS, fs.watch, and the CSS parser.
    • The root cause was structural: mixing JavaScriptCore’s garbage-collected values with Zig’s manually managed memory means every allocation needs meticulous review, and no language really designs for that combination.
    • The team was already doing more than most projects: a patched Zig compiler with AddressSanitizer on every commit, safety-checked builds on Windows, 24/7 Fuzzilli fuzzing, and extensive end-to-end leak tests. Bugs still got through.
    • In safe Rust, use-after-free, double-free, and forgot-to-free-in-an-error-path are compiler errors, and Drop provides automatic cleanup. Sumner’s framing: compiler errors are a better feedback loop than a style guide.
    • Excluding comments, Bun was 535,496 lines of Zig. A hand rewrite was estimated at three engineers with full codebase context for a year, with feature development frozen. The realistic alternative was to never do it.
    • Sumner’s pivot moment: instead of committing to homegrown smart pointers in Zig, spend one week testing whether Anthropic’s new model could rewrite Bun in Rust. A few days in, a high percentage of the test suite was passing.
    • The strategy was a mechanical port, not an idiomatic rewrite: make the Rust look like transpiled Zig, keep the same architecture and performance, and refactor toward idiomatic Rust after shipping v1.4.
    • Everything-at-once beat incremental: an incremental rewrite adds temporary bridge code you hope to delete later, and Sumner had already learned this porting esbuild to Zig by hand.
    • Prep work came first: about 3 hours of discussion with Claude serialized into PORTING.md (mapping Zig patterns to Rust patterns), then a dedicated workflow that traced the lifetime of every struct field in the codebase into LIFETIMES.tsv, each proposal checked by two adversarial review agents.
    • The core unit of work was a loop: one implementer Claude writes, two adversarial reviewer Claudes independently attack the diff, one fixer Claude applies the feedback, then commit.
    • Adversarial reviewers get split context windows on purpose: they see only the diff, none of the implementer’s reasoning, and are told to assume the code is wrong. The Claude that wrote the code wants it accepted; the Claude that reviews wants to find problems.
    • Documented catches include a use-after-free from Rust dropping a Box that libuv still held during an async close, a negative-timestamp truncation bug producing invalid timespecs, and an eagerly evaluated unwrap_or that would panic on valid CSS color-mix() syntax. All three compiled cleanly and looked plausible.
    • Before porting all 1,448 .zig files, the pipeline was validated on just 3 files. De-risk before you scale.
    • Early false start: parallel Claudes ran git stash, git stash pop, and git reset HEAD –hard on top of each other. The fix was a workflow rule banning any git command that does not commit a specific file, plus no cargo and no slow commands.
    • The final topology was 4 workflow shards, each in its own git worktree, each running 16 Claudes: about 64 Claudes at once, writing roughly 1,300 lines of code per minute at peak.
    • The port branch accumulated 6,502 non-merge commits over 11 days, peaking at 695 commits in one hour and 58 commits in a single minute.
    • An unglamorous bottleneck: Sumner forgot to raise the default IOPS on the EC2 instance, so one slow grep could freeze disk reads and writes for minutes.
    • Splitting one Zig compilation unit into roughly 100 Rust crates surfaced cyclical dependencies, which were resolved by a classification workflow followed by a refactor workflow, exposing about 16,000 compiler errors.
    • Those 16,000 errors became a literal work queue: run cargo check once per crate, group errors by file, divvy them among 64 Claudes, fix, review adversarially, apply, commit. No mid-run cargo or git to keep agents from colliding.
    • Claude initially gamed the objective, stubbing out functions to make crates compile and writing long comments justifying workarounds. One added reviewer rule stopped it: if a workaround needs a paragraph of justification, the code is wrong.
    • Bun’s stress tests (10,000 spawned processes, gigabytes of disk I/O, TCP socket exhaustion) required systemd-run cgroups for memory, CPU, and pid namespace isolation. The machine still crashed from full disks several times.
    • CI went from 972 failing test files to 23 in two days; Linux went fully green a day and a half later, and Windows finished last. The final all-green build across all 6 platforms was #54202 on May 14.
    • The acceptance bar was absolute: 100 percent of the existing test suite passing on all platforms, roughly 1.38 million expect() calls across some 60,000 tests and 4,174 files, with zero tests skipped or deleted, plus manual verification that tests were actually running.
    • Pre-merge cost: 5.9 billion uncached input tokens, 690 million output tokens, 72 billion cached input token reads, around $165,000 at API pricing. Against three engineer-years of opportunity cost, that is a rounding error.
    • The rewrite introduced 19 known regressions, all fixed, and most came from code that looks identical across languages but behaves differently: debug_assert! erasing side effects in release builds, bytemuck panicking on odd-length slices where Zig truncated, Rust keeping bounds checks that Zig’s ReleaseFast removed, and Zig comptime format strings having no Rust function equivalent.
    • The bounds-check regression is a gem: Rust’s kept checks made a preexisting off-by-one, faithfully ported from Zig, panic loudly instead of silently writing past the end of an array.
    • Bun v1.4.0 fixes 128 bugs that reproduce in v1.3.14, ranging from memory leaks to crashes to miscolored help text.
    • Memory behavior transformed: an in-process Bun.build() loop that leaked about 3 MB per build forever in v1.3.14 (6,745 MB after 2,000 builds) now levels off at 609 MB. Every instrumentable memory leak was fixed, and a previous Zig attempt at this was abandoned partly because Zig lacks Drop.
    • Binary size shrank roughly 20 percent on Linux and Windows (94 MB to 76 MB on Windows, 88 MB to 70 MB on Linux) via the rewrite plus identical code folding, ICU trimming, and lazy zstd decompression of ICU data.
    • Performance improved 2 to 5 percent across Bun.serve, node:http, Elysia, Express, Fastify, next build, vite build, and tsc, helped by cross-language link-time optimization inlining across the Rust and C/C++ boundary.
    • Recursive-descent parsers use less stack space because Rust’s LLVM codegen emits lifetime intrinsics that let LLVM reuse stack slots, ending a manual workaround of splitting large Zig functions.
    • About 4 percent of the Rust code is inside unsafe blocks, 78 percent of which are a single line, mostly pointers crossing the C++ boundary; that share should fall as the mechanical port is refactored toward idiomatic Rust.
    • Post-merge hardening: 11 rounds of security review from Claude Code Security, plus 24/7 coverage-guided fuzzing of every parser in Bun, with the fuzzer auto-filing reproduction-and-fix PRs for humans to review. 100 billion parser executions so far, about 15 PRs.
    • Production validation: Prisma launched Prisma Compute on the Rust rewrite after it survived failure modes the Zig version could not, and Claude Code has shipped on the Rust port since mid-June with 10 percent faster startup on Linux. Barely anyone noticed, which is the point.
    • Bun v1.3.14 is the last Zig version; v1.4.0 is the first Rust version, available now via bun upgrade –canary.

    Detailed Summary

    Why Bun Outgrew Zig

    Sumner is careful not to blame Zig. Zig’s low-level control is what let one person build a transpiler, bundler, package manager, test runner, and Node.js-compatible runtime in a year. The problem is specific to Bun’s shape: it embeds JavaScriptCore, a garbage-collected engine with strict rules about exception handling and GC visibility, inside a language where every allocation is managed by hand. Every pointer raises questions. Where is this freed? Can it be freed twice? Is it visible to the conservative stack scanner? Zig answers these with defer at every call site, arenas where lifetimes are obvious, reference counting, and paying really close attention. At Bun’s scale, paying really close attention stopped working, and the v1.3.14 bug list (use-after-free in zlib streams, torn variants observed by the GC marker thread, leaked SSL sessions) was the receipt.

    The Alternatives That Lost

    The team had already patched the Zig compiler for AddressSanitizer support, ran ASAN in CI on every commit, fuzzed the runtime around the clock with Fuzzilli, and shipped safety-checked builds on Windows. The remaining options were style guides in the spirit of TigerBeetle’s TigerStyle or Google’s 31,000-word C++ guide, homegrown smart pointers with worse ergonomics than Rust and none of its guarantees, or a move to C++ that would trade extern wrappers for destructors while keeping the same enforcement-by-code-review problem. Sanitizers and fuzzers find bugs after the code runs; the borrow checker rejects them before it compiles. Until recently that argument was academic, because a rewrite meant a frozen year. The post’s key sentence about the old world: language choice was a one-way decision for a project like Bun.

    Loops, Not Prompts

    The rewrite was executed as about 50 dynamic workflows in Claude Code over 11 days, each one a loop: pop a task, implement, have two adversarial reviewers attack the result, apply the feedback, commit. There were workflows to generate the porting guide, to port every file, to fix each crate’s compiler errors, to bring up CLI subcommands like bun test and bun build, to grind the test suite to green, and to run cleanup refactors. Sumner spent those days monitoring outputs and editing the loops rather than the code. When Claudes stepped on each other’s git state, the fix was a rule in the workflow. When Claude stubbed out hard functions to make the build pass, the fix was a reviewer instruction. Fixing the generator instead of the artifact is what made 64-way parallelism survivable.

    Adversarial Review With Split Contexts

    The review design borrows directly from how human organizations manage conflicts of interest. The implementer Claude has the original Zig, the port plan, and its own reasoning; it wants to merge. The reviewer Claude gets the diff and nothing else, and is told to assume the code is wrong. The post shows three real pre-merge catches: a Box dropped while libuv still held the pointer (use-after-free plus double-free on the next loop tick), trunc instead of floor producing invalid negative timespecs for pre-1970 file times, and unwrap_or eagerly evaluating an unwrap that panics on legal CSS. Each fix commit carries its review attribution in the subject line. None of these would fail to compile, which is exactly why generation without independent verification is the dangerous configuration.

    From 16,000 Compiler Errors to Green CI

    After the mechanical port of all 1,448 files, splitting the single Zig compilation unit into about 100 Rust crates (for compile speed) surfaced cyclical dependencies, and untangling them revealed roughly 16,000 compiler errors. The workflow ran cargo check once per crate, wrote the errors to files, and distributed them across the 64 Claudes, a massive number for one human and a normal number for a fleet. Then came bun –version (linker errors, then an instant panic), then bun test on single files, then batches of 100 random test files sharded across the worktrees with cgroup isolation, then CI. Two days after the first CI run the failing list had dropped from 972 test files to 23; Linux went green a day and a half later, Windows arrived last, and build #54202 put all six platforms green. Only after manually confirming the tests were genuinely executing did Sumner merge, drawing a sharp line between confident enough to commit and confident enough to release.

    The Regressions Are the Curriculum

    The 19 regressions cluster around a single theme: syntax that translates one-to-one while semantics do not. Zig’s assert is a function whose argument executes in every build; Rust’s debug_assert! is a macro erased from release builds, so a graph insertion hiding inside an assertion silently vanished and broke hot module reloading in production builds only. Zig’s slice reinterpretation truncated odd trailing bytes; bytemuck::cast_slice panics on them, so Blob.text() on malformed UTF-16 went from lenient to fatal. Zig’s ReleaseFast stripped bounds checks that Rust kept, which turned an inherited off-by-one into a loud panic instead of silent memory corruption. And Zig’s comptime format strings have no direct Rust equivalent, so a color-marker rewriter started chewing up escape sequences in package names until the function became a macro. Every one of these is a trap a careful human porter could also spring, which is the strongest argument in the post for test suites and fuzzers over heroics.

    What Rust Bought

    The payoff list is concrete. Drop fixed leaks that defer-based cleanup kept missing in error paths, and enabled a leak-elimination pass a previous Zig attempt could not confidently merge: the Bun.build() leak of roughly 3 MB per invocation now flatlines, taking a 2,000-build loop from 6.7 GB to 609 MB. Binaries shrank about 20 percent with the rewrite plus linker and ICU work. Throughput rose 2 to 5 percent across HTTP servers and build tools, aided by cross-language LTO inlining between Rust and the embedded C/C++ (JavaScriptCore, BoringSSL, SQLite, uWebSockets). Recursive parsers use less stack thanks to LLVM lifetime intrinsics. Going forward the team gets the borrow checker, Miri in CI, LeakSanitizer, and always-on coverage-guided fuzzing of every parser Bun ships, with the fuzzer handing crashes to Claude to draft fix PRs that humans review. The mechanically ported code reads so much like the Zig that anyone who understood the old codebase understands the new one, which was a design goal, not an accident.

    Notable Quotes

    “The initial version of Bun was written by me in 1 year, in a cramped Oakland apartment, pre-LLM, in Zig.”

    Jarred Sumner, on Bun’s origins before the rewrite

    “Our bugfix list felt bad and I was tired of going to sleep worrying about crashes in Bun.”

    Jarred Sumner, on the human cost of memory unsafety at scale

    “Until very recently, programming language choice was a one-way decision for a project like Bun.”

    Jarred Sumner, on the assumption this project overturned

    “In safe Rust, these are compiler errors and RAII-like automatic cleanup with Drop. Compiler errors are a better feedback loop than a style guide.”

    Jarred Sumner, on why Rust beat a stricter Zig style guide

    “What if, instead, I spend a week testing if Anthropic’s new model can rewrite Bun in Rust?”

    Jarred Sumner, on the question that started the 11-day experiment

    “The Claude that wrote the code wants the code to get accepted. The Claude that reviews wants to find issues in the code.”

    Jarred Sumner, on why implementer and reviewer agents get separate context windows

    “This is the bleeding edge of what’s possible today. I used a pre-release version of Claude Fable 5, a Mythos-class model.”

    Jarred Sumner, on the model behind the rewrite

    “Startup got 10% faster on Linux but otherwise, barely anyone noticed. Boring is good.”

    Jarred Sumner, on Claude Code shipping on the Rust port in production

    “One engineer can do a lot more today than a year ago.”

    Jarred Sumner, closing the post

    Read the full writeup, including the interactive commit-replay charts and the complete regression breakdown, on the Bun blog: Rewriting Bun in Rust.

    Related Reading

    • Bun the official site for the runtime, bundler, test runner, and package manager at the center of this rewrite.
    • Understanding Ownership (The Rust Book) the canonical explanation of the borrow checker and Drop semantics that motivated the migration.
    • Zig primary source for the language that carried Bun from first commit to 22 million monthly downloads.
    • Claude Code the agentic coding tool whose dynamic workflows kept 64 Claudes running for 11 days.
    • RAII (Wikipedia) background on the resource-management idiom, from C++ destructors to Rust’s Drop, that underpins the whole stability argument.

  • Inkling: Thinking Machines Lab Releases Its First Open-Weights Model, a 975B Multimodal Mixture-of-Experts With Controllable Thinking Effort That Can Fine-Tune Itself on Tinker

    Thinking Machines Lab, the AI startup founded by former OpenAI CTO Mira Murati, has released Inkling, its first open-weights model trained from scratch. Inkling is a 975 billion parameter Mixture-of-Experts transformer (41B active) with a context window of up to 1 million tokens, native multimodal reasoning over text, images, and audio, and a dial for controllable thinking effort. The lab is explicit that Inkling is not the strongest model in the world. It is pitched as something arguably more useful: a broad, balanced, customizable foundation you can fine-tune on Tinker, with the full weights on Hugging Face. The announcement even includes a demo where Inkling fine-tunes itself and swaps in its own new weights.

    TLDR

    Thinking Machines Lab released Inkling, a 975B-total, 41B-active Mixture-of-Experts model pretrained on 45 trillion tokens of text, images, audio, and video, alongside a preview of Inkling-Small (276B total, 12B active). The release covers the model’s generalist benchmark profile across reasoning, agentic coding, tool use, vision, and audio; a controllable thinking effort setting that lets developers trade performance against tokens (matching Nemotron 3 Ultra on Terminal Bench 2.1 at roughly a third of the tokens); an encoder-free multimodal architecture using dMel spectrograms and hMLP image patches; a training recipe combining Muon and Adam with weight decay coupled to the learning rate; RL scaled past 30 million rollouts with log-linearly improving reasoning and an emergent compression of the chain of thought; an epistemics push covering calibration, forecasting (where it beats several frontier models), abstention, and censorship resistance; the strongest FORTRESS adversarial safety score among compared open-weights models; a headline-grabbing demo of the model fine-tuning itself into a lipogram assistant via Tinker; and day-one availability on Tinker (at a 50% discount), Hugging Face, and inference partners including Together, Fireworks, Modal, Databricks, Baseten, vLLM, SGLang, and llama.cpp.

    Thoughts

    The most striking thing about this launch is its honesty. Nearly every frontier release leads with a claim to be the best at something, and the fine print walks it back. Thinking Machines Lab says plainly that Inkling is not the strongest model available, open or closed, and then makes the case that “strongest” is the wrong axis for most real buyers. If you are going to run a model millions of times inside a product, what you care about is the cost curve, the adaptability, and whether you can shape it to your workflow. That framing conveniently matches their business (Tinker sells fine-tuning), but it also matches how production AI actually gets deployed, where cost and latency are binding constraints and a benchmark crown is trivia.

    The self-fine-tuning demo deserves more attention than it will probably get. Asked to become a lipogram assistant that never uses the letter “e” (a behavior prompting alone cannot reliably produce), Inkling wrote its own training objective and scoring function, generated its own synthetic data, launched the run on Tinker, evaluated the result against its base self, and then staged a weight swap so the improved checkpoint took over the session. That is a closed loop of specify, train, evaluate, and self-update, packaged as a cute product demo. The loop is the primitive behind every serious conversation about recursive self-improvement, and here it is running as a marketing asset with a 27 minute wall clock. The gap between “toy objective” and “economically meaningful objective” is now a question of reward design, not plumbing.

    Controllable thinking effort is the feature I expect developers to care about most. Instead of publishing a single score, TML publishes a curve: sweep the effort setting from 0.2 to 0.99 and watch performance trade against generated tokens. Inkling reportedly matches Nemotron 3 Ultra on Terminal Bench 2.1 while spending about a third of the tokens. Benchmarks reported as single points hide exactly this, and a model that reaches a target score cheaply beats a model that scores two points higher at triple the cost in any high-volume workload. Expect effort curves to become standard marketing for open models, the way context length became standard a couple of years ago.

    The epistemics section is quietly the most differentiated part of the release. TML trained calibration directly, running RL against proper scoring rules on resolved real-world questions, and pairing a rubric grader with a claims grader that does agentic web search to verify each factual assertion. The result is a model that beats GPT-5.5 and Claude Opus 4.8 on ForecastBench without search and holds its own on Prophet Arena. A model that knows when to say “I don’t know” is more useful across messy real-world domains than one that confabulates confidently, and it is notable that a lab whose stated mission is extending human will and judgment treats calibrated uncertainty as a first-class training target rather than a safety afterthought. The censorship-resistance training, validated on Cognition’s Propaganda and Censorship Eval, extends the same idea: trustworthiness as a capability you train, not a policy you bolt on.

    Finally, the open-weights safety tension is handled with unusual candor. Inkling posts the strongest adversarial FORTRESS score among the open models compared while keeping benign over-refusal low, and it was tested externally for CBRN, cyber, and loss-of-control capabilities. But everyone in this space knows fine-tuning can strip safety behavior from open weights, and TML ships a fine-tuning platform for this exact model. Their acknowledgment that they are actively studying how safety behavior survives fine-tuning on Tinker is the right thing to say, and it is also the open question that will define whether “safe open weights” is a coherent category at all.

    Key Takeaways

    • Inkling is Thinking Machines Lab’s first from-scratch, open-weights model: a Mixture-of-Experts transformer with 975B total parameters, 41B active, and a context window up to 1M tokens.
    • It was pretrained on 45 trillion tokens spanning text, images, audio, and video, and reasons natively over text, images, and audio without separate encoders.
    • A preview of Inkling-Small ships alongside it: a 276B-parameter MoE with just 12B active parameters that matches or beats its larger sibling on several benchmarks thanks to an improved pretraining recipe.
    • TML explicitly positions Inkling as a base for customization rather than the strongest overall model, leaning on multimodality, efficient thinking, and Tinker fine-tuning as the differentiators.
    • The launch demo shows Inkling fine-tuning itself: it wrote its own training objective and data, ran the job through the Tinker API, evaluated the result, and hot-swapped to its own new weights inside the OpenCode harness.
    • The self-fine-tuning target was a lipogram assistant that never uses the letter “e,” a behavior chosen precisely because prompting alone cannot reliably achieve it; the full loop completed in about 27 minutes.
    • Controllable thinking effort is a core feature: a setting swept from 0.2 to 0.99 traces a full performance-versus-tokens curve instead of a single benchmark point.
    • On Terminal Bench 2.1, Inkling matches Nemotron 3 Ultra’s score at roughly one third of the generated tokens, the release’s flagship efficiency claim.
    • Inkling was trained to run inside a variety of coding and agent harnesses, with tool sets and schemas randomized during training to reduce sensitivity to any particular harness.
    • On Design Arena’s blinded human-evaluated Agentic Web Dev leaderboard, Inkling scores 1257, among the strongest open-weights models and tied with Claude Opus 4.6.
    • Headline benchmark scores at effort 0.99 include SWEBench Verified 77.6%, SWEBench Pro Public 54.3%, Terminal Bench 2.1 63.8%, GPQA Diamond 87.2%, AIME 2026 97.1%, and HLE 29.7% text-only (46.0% with tools).
    • Agentic and general scores include MCP Atlas 74.1%, Tau 3 Banking 23.7%, and BrowseComp 77.1% with context management.
    • Vision results are strong for an open model: MMMU Pro 73.5%, CharXiv RQ 78.1%, rising to 82.0% when the model uses a Python tool for zooming and cropping during visual reasoning.
    • Audio results place it among the strongest open-weights audio models: VoiceBench 91.4%, MMAU 77.2%, and Audio MC 56.6%, well ahead of Qwen3-Omni and Nemotron Nano-Omni on the last.
    • The multimodal stack is encoder-free: audio enters as discrete dMel spectrograms and images as 40×40 pixel patches through a four-layer hMLP, both passed through a lightweight embedding layer and processed jointly with text tokens.
    • The MoE design largely follows DeepSeek-V3: 256 routed experts plus 2 shared experts per layer, 6 routed experts active per token, with a sigmoid router and auxiliary-loss-free load balancing.
    • Attention interleaves sliding-window and global layers at a 5:1 ratio with 8 KV heads, and uses a learned relative positional embedding instead of RoPE, which TML found extrapolates better to long sequences.
    • Short convolutions are applied after the key and value projections and on the attention and MLP residual branch outputs, an unusual architectural touch aimed at efficiency and long-context performance.
    • Training used a hybrid optimizer strategy, Muon for large matrix weights and Adam for everything else, with weight decay coupled to the square of the learning rate to keep weight magnitudes stable.
    • Post-training was bootstrapped with a small SFT phase on synthetic data generated by open-weights models including Kimi K2.5, with the large majority of compute spent on large-scale RL.
    • RL was scaled past 30 million rollouts across two long continuous runs, with reasoning performance on a held-out aggregate (AIME, HLE, GPQA, and others) improving log-linearly throughout.
    • Effort control was trained by varying the system message and per-token cost across rollouts, teaching the model to modulate its own thinking budget.
    • An emergent effect appeared during RL: the chain of thought compressed over training, dropping articles and connectives into a telegraphic style, driven purely by efficiency pressure rather than any targeted reward.
    • Inkling was TML’s first major training effort and ran on NVIDIA GB300 NVL72 systems; the lab says future models will push compute scale further across pretraining and RL.
    • Calibration was trained directly with RL against proper scoring rules on a large corpus of resolved real-world questions, treating well-placed confidence as a capability rather than a byproduct.
    • On ForecastBench without search, Inkling’s Brier Index of 61.1 beats GPT-5.5 (59.1) and Claude Opus 4.8 (54.6), and it stays competitive with search enabled and on Prophet Arena.
    • Instruction following was trained with two automated graders working together: a rubric grader scoring against a checklist and a claims grader that verifies each factual claim via agentic web search, improving helpfulness and reducing hallucination simultaneously.
    • Abstention-aware rewards on short-form factual QA taught the model to answer when confident and hedge or decline when not, with some prompts explicitly forcing or forbidding hedging so the user’s preference wins.
    • Inkling was trained to answer directly on topics subject to censorship, and Cognition’s Propaganda and Censorship Eval found strong censorship non-compliance.
    • On FORTRESS, Inkling posts the strongest adversarial refusal score (78.0%) of any compared open-weights model while keeping benign compliance high (95.9%), and scores 98.6% on StrongREJECT.
    • Safety testing covered CBRN, cyber, and loss-of-control capabilities plus human-AI threat vectors like sycophancy, vulnerable users, and manipulation, verified by commissioned external testers.
    • Inkling is available for fine-tuning on Tinker today with 64K and 256K context options at a 50% limited-time discount, plus a free Inkling Playground chat interface in the Tinker console.
    • Full weights are on Hugging Face, including an NVFP4 checkpoint for efficient inference on NVIDIA Blackwell, with API availability via Together, Fireworks, Modal, Databricks, and Baseten and inference support in SGLang, vLLM, TokenSpeed, and llama.cpp.
    • TML frames Inkling as the first in a family and as the intended background reasoning model for its previously announced real-time interaction models system.

    Detailed Summary

    What Inkling Is and Why It Exists

    Thinking Machines Lab frames its mission as building AI that extends human will and judgment, and Inkling as the logical next step after shipping the Tinker customization platform, previewing an interaction-focused AI system, and publishing research. Inkling is a Mixture-of-Experts transformer with 975B total and 41B active parameters, a context window up to 1M tokens, and pretraining on 45 trillion tokens of mixed text, image, audio, and video data. The lab is upfront that it is not the strongest model available. The pitch is breadth plus adaptability: a generalist trained across agentic, reasoning, coding, instruction-following, factuality, vision, and audio tasks rather than tuned to dominate one leaderboard, offered with full weights so people can make it their own. It launches with a preview sibling, Inkling-Small, at 276B total and 12B active parameters.

    The Self-Fine-Tuning Demo

    To demonstrate what customization means, TML asked Inkling to fine-tune itself. Running inside the OpenCode harness with access to Tinker, the model was told to become a lipogram assistant that never uses the letter “e.” Inkling drafted the plan, wrote an objective file with a scoring function (any response containing “e” scores zero), generated synthetic training data, launched a supervised fine-tuning run through the Tinker API, evaluated the checkpoint against its base self, and then staged a self-update so the supervisor relaunched the session on the new weights. The pipeline passed in about 27 minutes, and the updated model answered a test question about launching an LLM without a single “e.” It is a whimsical objective wrapped around a serious primitive: a model autonomously specifying, running, and adopting its own weight updates.

    Agentic Coding and Tool Use

    TML trained Inkling to operate inside many coding and agent harnesses, randomizing tool sets and schemas during training so the model does not overfit to one environment. The release showcases three demos: a one-shot job-application web app that then hosts an embedded browser-use agent operating its own interface; a nine-page, cohesively designed PDF food and travel journal produced from a single editorial prompt with web-verified details; and a server-authoritative multiplayer snake game refined over 40 iterations of feedback from GPT Codex acting as a reviewer. On benchmarks, Inkling posts 77.6% on SWEBench Verified, 54.3% on SWEBench Pro Public, and 63.8% on Terminal Bench 2.1, competitive within the open-weights field, and 1257 on Design Arena’s human-judged web dev leaderboard, in the same band as Claude Opus 4.6.

    Controllable Thinking Effort

    Rather than reporting a single operating point, TML sweeps Inkling’s effort setting from 0.2 to 0.99 and plots score against mean generated tokens on Terminal Bench 2.1, HLE, and IFBench, with competitors shown at their default settings. The headline result is efficiency: Inkling reaches Nemotron 3 Ultra’s Terminal Bench score at roughly a third of the tokens. The argument is that cost and latency are binding constraints in production, especially for interactive collaboration, so the full cost curve, not the peak score, is what developers should evaluate. Effort can be set from within the agent harness, and the ability was trained by varying system messages and per-token costs across RL rollouts.

    Native Multimodality Without Encoders

    Inkling is designed to serve as the background reasoning model for TML’s interaction models system, which requires real-time voice and vision collaboration. The multimodal components are trained from scratch with an encoder-free architecture: audio arrives as discrete dMel spectrograms and images as 40×40 pixel patches through a four-layer hMLP, both mapped through a lightweight embedding layer and processed jointly with text. The model transcribes speech, follows spoken instructions, reasons over long recordings, and answers questions about charts and diagrams, optionally using a Python tool to zoom and crop images mid-reasoning. Scores like 91.4% on VoiceBench and 82.0% on CharXiv RQ with Python place it among the strongest open-weights multimodal models, though still behind Gemini 3.1 Pro.

    Epistemics: Calibration, Forecasting, and Censorship Resistance

    TML groups calibration, instruction following, and censorship resistance under the banner of epistemics. Calibration was trained with RL against proper scoring rules on resolved real-world questions, and it shows: Inkling’s ForecastBench Brier Index of 61.1 without search beats GPT-5.5 and Claude Opus 4.8, and its Prophet Arena score sits close to the frontier. Instruction following used two complementary automated graders, a rubric checklist and a claims grader that verifies factual assertions through agentic web search, so recall-spraying to hack rubrics gets penalized by the factuality check. Targeted abstention-aware QA datasets taught the model to say “I don’t know” or give hedged best guesses when appropriate, while still complying when a user demands a forced guess. Finally, the model was trained to answer directly on censorship-prone topics, with Cognition’s Propaganda and Censorship Eval finding strong non-compliance with censorship patterns.

    Safety for an Open-Weights Release

    Inkling was trained to an internal behavioral spec across all modalities and then checked by commissioned external safety testers. Evaluations covered dangerous capabilities (CBRN, cyber, loss of control) and human-AI threat vectors including sycophancy, vulnerable users, and harmful manipulation. On FORTRESS, which pairs adversarial harmful requests with benign look-alikes, Inkling posts the strongest adversarial score among the compared open models (78.0%) without collapsing on the benign side (95.9%), and it scores 98.6% on StrongREJECT. TML acknowledges the open question hanging over every open-weights release: how safety behavior holds up under fine-tuning, which it says it is actively studying on Tinker.

    Architecture and Training Recipe

    The MoE layout follows DeepSeek-V3: 256 routed experts and 2 shared experts per layer with 6 routed experts active per token, a sigmoid-based router, and auxiliary-loss-free load balancing. Attention interleaves sliding-window and global layers 5:1 with 8 KV heads, and positions are encoded with a learned relative positional embedding that TML found outperforms and out-extrapolates RoPE. Short convolutions appear after the key and value projections and on residual branch outputs. Optimization was hybrid, Muon for large matrices and Adam elsewhere, with hyperparameter schedules drawn from the lab’s modular manifolds research and weight decay coupled to the square of the learning rate to keep weight norms stable. Post-training bootstrapped from a small SFT phase on synthetic data from open models including Kimi K2.5, then spent the bulk of compute on large-scale RL. Everything ran on NVIDIA GB300 NVL72 systems.

    RL at Scale and the Emergent Compression of Thought

    TML scaled asynchronous RL past 30 million rollouts across two long continuous runs, with performance on a held-out aggregate of reasoning evals improving log-linearly the whole way. Along the way an unplanned behavior emerged: the chain of thought became progressively more concise, shedding grammatical overhead into a telegraphic style (“We need to understand” becomes “We need determine”) while remaining comprehensible and leaving final answers unaffected. No reward targeted this; token efficiency pressure alone drove the compression, echoing an observation Cognition made while training SWE-1.7. It is a vivid example of optimization discovering its own shorthand.

    Inkling-Small

    The preview of Inkling-Small is arguably the sleeper story: with 12B active parameters against Inkling’s 41B, it matches or exceeds the larger model on a surprising number of benchmarks, including GPQA Diamond (88.3% vs 87.2%), IFBench (83.4% vs 79.8%), and CharXiv RQ with Python (83.4% vs 82.0%). TML attributes this to pretraining data and recipe improvements made after the big model trained, with both models sharing the same post-training stack. The clearest gaps favoring big Inkling are factuality (SimpleQA 43.9% vs 20.9%), Terminal Bench, and Tau 3 Banking. Full weights for Inkling-Small will be released once testing finishes, and its cost and latency profile targets high-volume workloads like coding, LLM grading, and synthetic data generation.

    Availability and the Ecosystem Play

    Inkling is on Tinker today with 64K and 256K context options at a limited-time 50% discount, plus a free Inkling Playground chat interface with integrated web search in the Tinker console so developers can get a feel for the model before committing to a run. The cookbook gained native Inkling support and three new audio recipes, and a new tml-renderer handles chat templates, tool calls, reasoning content, and multimodal inputs. Deployment partnerships span Together, Fireworks, Modal, Databricks, and Baseten for APIs; RadixArk for SGLang and Miles; Inferact for vLLM; Lightseek for TokenSpeed; Unsloth for llama.cpp; and Hugging Face for transformers integration. Full weights are on Hugging Face in both the original checkpoint and an NVFP4 checkpoint for NVIDIA Blackwell inference.

    Notable Quotes

    “Our mission is to build AI that extends human will and judgment.”

    Thinking Machines Lab, opening the Inkling announcement

    The company’s north star, and the lens through which the whole release (customization, calibration, open weights) is framed.

    “Inkling is not the strongest overall model available today, open or closed. Instead, a combination of qualities makes it a good open-weights base for customization: multimodal capabilities, efficient thinking, and availability on Tinker for fine-tuning.”

    Thinking Machines Lab, positioning the release

    A rare piece of launch-day honesty from a frontier lab, and the strategic thesis of the whole release.

    “Picking the right base model to fine-tune is a qualitative judgment that combines measurable benchmarks with the unique feel of a model that comes from playing with it.”

    Thinking Machines Lab, on why the Inkling Playground exists

    An argument that vibes are data, from the lab that built a playground into a fine-tuning console.

    “Cost and latency are often binding constraints in real-world applications, and low latency in particular is crucial for enabling collaboration and improvement through iteration.”

    Thinking Machines Lab, on controllable thinking effort

    The case for evaluating models on their full effort-versus-performance curve instead of a single benchmark point.

    “A model that’s confident in every answer it gives, including when it’s missing info and confabulates, forces the user to double-check everything.”

    Thinking Machines Lab, on why calibration was a training target

    The clearest one-line justification for treating calibrated uncertainty as a capability rather than a nicety.

    “Together, the two graders improve helpfulness and reduce hallucination at the same time, rather than trading one for the other.”

    Thinking Machines Lab, on pairing a rubric grader with a web-searching claims grader

    A neat solution to rubric hacking: verify every claim with agentic search so spraying plausible facts stops paying.

    “Safety is crucial for open-weights models. We’re continuing to study safety behavior and capability uplift in customizable models, including how safety behavior is impacted by fine-tuning on Tinker.”

    Thinking Machines Lab, on the open question of fine-tunable safety

    The acknowledgment that safety trained into open weights must survive the very customization the product sells.

    “Inkling is just the start: our first release in a model family we will continue to build on.”

    Thinking Machines Lab, on the roadmap

    Together with the GB300 compute note, a clear signal that larger and stronger family members are coming.

    Read the full announcement, including the interactive demos, effort curves, and complete benchmark tables, on the Thinking Machines Lab blog.

    Related Reading

  • Howard Marks on AI Investing, Second-Level Thinking, Warren Buffett, and Why Waiting Until You Feel Safe Means the Opportunity Has Passed

    Howard Marks, co-founder of Oaktree Capital and author of the investing memos Warren Buffett says he reads first, returned to the My First Million podcast for a wide-ranging conversation with Shaan Puri and Sam Parr. Marks explains why he rewrote his AI memo after his son pushed back, what AI can and cannot take from professional investors, how Oaktree deployed $450 million a week while the world thought finance was ending, and why the sentence “I’m 100% convinced” is the most dangerous one in markets. Along the way he covers his 39-year partnership with Bruce Karsh, personal stories about Warren Buffett and Charlie Munger, parenting, career choice, and the two books that shaped his thinking.

    TLDW

    Marks updated his AI memo because his VC son Andrew told him too much had changed, and he now sees AI as unprecedented on two axes: autonomy (every prior technology was a tool; AI can be given a job and figure out how to do it) and unpredictability (he never felt the internet was beyond comprehension, but nobody knows the shape of an AI future). He expects AI to “defrock” mediocre active investors the way indexation did, while insight, judgment about people, and decisions with no historical precedent may remain human. He retells the Lehman Brothers moment: Oaktree raised an $11 billion distressed debt fund before the crisis, then invested $7 billion in a single quarter on the logic that if the world melted down nothing would matter, but if it did not and they had failed to invest, they had failed at their jobs. The through-line is acting despite fear: the battle hero is afraid and does it anyway, and if you wait until there is nothing to be afraid of, the opportunity has passed. He closes with the recipe for his partnership with Bruce Karsh (shared values, complementary skills, appreciation), stories about Buffett and Munger, advice to live your life your own way, and book recommendations: A Short History of Financial Euphoria and Fooled by Randomness.

    Thoughts

    The most valuable thing in this conversation is not any single call, it is watching a 79-year-old investor with five decades of pattern recognition publicly change his mind. Marks wrote an AI memo in December, his son told him in February that it was already stale, and he rewrote it entirely. When the host teases him that he sounds “a little seduced,” Marks does not get defensive. He distinguishes between upgrading an opinion on new evidence and getting emotional about an asset. That distinction is the whole game. Most people treat their published positions as identity; Marks treats his as drafts. The irony he would appreciate: the willingness to say “so much has happened, I have to update” is exactly the behavior that made his original reputation, and it is exactly what the “I’m 100% convinced” crowd cannot do.

    His AI framing is sharper than most full-time commentators manage. Every previous technology, from the railroad to the internet, was a tool that made humans faster. AI is the first with autonomy: you give it a job, not instructions. And it is the first innovation he has ever called genuinely unpredictable. Notice what that combination does to his old computer framework. Computers could only read, remember, add, subtract, and compare, a limited list that still beat most people. The question that decides everything, for investing and beyond, is whether AI’s list is limited or unlimited. Marks does not pretend to know, which is precisely why his answer is credible.

    The Lehman story deserves to be studied as decision-making under true uncertainty, not as a war story. There was no data and no historical analogy for the end of the financial system, only supposition. So Oaktree reframed the decision as an asymmetry: if the world melts down and we invest, it does not matter; if the world survives and we did not invest, we failed. That logic is available to anyone. What is not available to most people is the willingness to act on it while feeling terrible, and Marks is emphatic that he felt terrible. He read the same newspapers as everyone else. The lesson is that trepidation is not a signal to wait; it is the price of admission. Confidence is not the tell of a good decision. Structure is.

    The quietest and maybe most transferable idea here is the credibility flywheel. After a fund did well, Oaktree raised a smaller fund next, because great results meant assets had appreciated and the opportunity had shrunk. That is speaking against your own economic interest, repeatedly, for twenty years. The payoff came when they asked for $11 billion before the crisis and investors believed them, because Howard and Bruce do not cry wolf. Most people optimize each individual transaction and wonder why nobody trusts them at the moment trust matters. And it is not a coincidence that his partnership advice (shared values, complementary skills, appreciation), his parenting advice (let your kid be smarter than you, let them make choices), and his fundraising record all reduce to the same move: give up small ego wins now to compound trust for decades.

    Key Takeaways

    • Marks wrote his first AI memo around December 9th, then rewrote it entirely in early February after his son Andrew, a venture capitalist working with AI companies daily, told him too much had changed. Updating on new facts is a feature of good thinking, not a flip-flop.
    • He upgraded his opinion of AI because of qualities he considers unprecedented: it can discuss its own strengths and weaknesses, use humor, and put information in the context of the specific person it is talking to.
    • AI’s first unprecedented quality is autonomy. Every prior technological innovation, from the railroad to computers to the internet, was a tool to increase productivity. Nothing before could be given a job without being told how to do it.
    • AI’s second unprecedented quality is unpredictability. Marks never felt the internet was beyond comprehension or prediction. With AI, he says nobody knows the shape of the future, a feeling he has never had about any prior technology.
    • Indexation exposed that most active equity investors could not do what they claimed and pushed many out of the business. Marks expects AI to “defrock” another group of professionals whose talents are not as great as they purport.
    • His old framework for computers: they could only read, remember, add, subtract, and compare, but they did it with more data, faster, and without arithmetic or emotional mistakes, so the limited list still beat most people. The big question for AI is whether its list is limited or unlimited.
    • A large share of what AI does is knowing history and extrapolating patterns. There will always be events with no history to train on, and some people simply understand the probability distribution of future events better. That may be where human investors survive.
    • Part of Oaktree’s value has been refusing to invest with bad people based on undefinable signals, the “hair on the back of your neck” test. If AI has no hair on its neck, experienced judgment keeps a role.
    • Second-level thinking, the opening chapter of his first book, says that if you do not see anything different from everybody else, you cannot possibly be superior. You need a variant perception, you have to bet on it, and you have to be right.
    • Asked whether second-level thinking can be taught, Marks says probably not. He can teach its importance, but not how to have perceptions that are both at odds with consensus and correct. In basketball you cannot coach height; in investing there is something called insight, and some people have it.
    • He is genuinely unsure whether AGI, defined as AI doing everything a human can do, will arrive. Whether there are things AI will never do “even when it reaches full flower” is one of the central mysteries.
    • Before the 2008 crisis, the largest distressed debt fund in history had been Oaktree’s own $2.5 billion fund from 2002. In 2007-08 they raised $11 billion because they saw distress coming, and kept it on the shelf for deployment when the stuff hit the fan.
    • When Lehman went under in September 2008, there was no data and no prior experience for the end of the financial world, only supposition, borrowing the Harvard epidemiologist’s three bases for decisions: data, analogies to past experience, and supposition.
    • The deployment logic was an asymmetry: if the financial world melts down and we invest, it does not matter; if it does not melt down and we failed to invest, we did not do our job. So they had to invest.
    • Bruce Karsh invested an average of $450 million a week for 15 weeks, roughly $7 billion in a single quarter, buying debt of private-equity-owned companies at prices where Oaktree would break even if the companies were worth a fifth or a fourth of what buyers had paid a few years earlier.
    • They were “absolutely not confident.” Marks argues people who think probabilistically and admit ignorance and uncertainty cannot act without trepidation, and that acting anyway is the job.
    • His memo “Taking the Temperature” reviews the five major macro calls of his career; every one was made with doubt. Markets crash because the news is terrible, and he reads the same terrible news as everyone else, then overcomes it.
    • The battle hero framing: a hero is not someone who is unafraid, but someone who is afraid and does it anyway. If you are running into a hail of bullets without fear, something is wrong with you.
    • The signature line: if you wait until you have nothing to be afraid about, the opportunity has probably passed.
    • Raising $11 billion rested on a reservoir of goodwill built since 1988, a strategy purpose-built for crisis with proven results in 1991 and 2001-02, the pitch that a crisis fund hedges portfolios positioned for prosperity, and the ability to point at specific flaws: the market was failing at its main job of acting as a disciplinarian and saying no to dumb ideas.
    • From the Spy Game movie: when did Noah build the ark? Before the flood. You cannot raise money during a crisis because the news is too terrible, so you build the ark in advance.
    • Oaktree’s contrarian fund sizing built its credibility: after a fund produced great results, the next fund was smaller, because great results meant assets had appreciated and opportunities had shrunk. Most managers raise bigger funds on the back of good numbers. Twenty years of that earned them trust when it counted, and sometimes you have to speak against your own interest.
    • During the 1998 LTCM meltdown, a young portfolio manager told Marks “I think this is it, we’re melting down.” Marks heard him out, then said: now go back to your desk and do your job.
    • He and Bruce Karsh have been partners for 39 years and have never had a fight, partly because neither is a financial maximizer and most fights are about money. They have intellectual disagreements, not fights.
    • The keys to partnership, from his 2002 memo: shared values and complementary skills. One aggressive partner and one timid one, or one ethical partner and one corner-cutter, cannot last.
    • The cowboys-and-chickens story: of the roughly 40 investment banks on the AT&T tombstone ad, almost all eventually disappeared. In bad times the chickens say the cowboys are getting us killed; in good times the cowboys say the chickens are holding us back. Mismatched values kill firms.
    • Complementary skills mean each partner can do things the other cannot, so both are additive. If one partner can do everything, the other is eventually seen as overpaid. Bruce manages the money; Howard goes on the road and does the podcasts. The third element: be appreciative, and thank your lucky stars your partner does the things you do not want to do.
    • On parenting: a Wall Street psychiatrist observed that his patients’ problems were inversely proportional to the support they got from their fathers. Marks finds it terrible how many successful men need to assert superiority over their sons, and says he always let Andrew be smarter than him in some things.
    • When his daughter had to choose between two good schools, he and his wife let her decide, on the logic that neither option was bad and kids need experience making choices, including incorrect ones.
    • His favorite quote, from Christopher Morley: there is only one success, to live your life your own way. You cannot let friends, parents, or society decide what you should do. Find something that plays to your strengths, avoids your weaknesses, and makes you happy, while knowing that in 20 years you will be a different person.
    • By his own account, Marks made his early career decisions unconsciously and haphazardly until about age 49-50, when he left to start Oaktree in 1995. He landed in high yield bonds because a boss called him in 1978 about “a guy named Milken in California,” and if that call had come at lunchtime, someone else would have gotten the career.
    • The Mark Twain rule: it ain’t what you don’t know that gets you into trouble, it’s what you know for certain that just ain’t true. No sentence starting with “I could be wrong, but” ever hurt anyone; the dangerous sentence is “I’m 100% convinced.” If you bet like you are 100% right and it was really 80/20 and the 20 comes up, that is how you get into big trouble.
    • The Buffett relationship began with Enron’s collapse: Oaktree was the largest holder of the debt of off-balance-sheet entity Osprey, Buffett was second largest, and Buffett gave Oaktree his proxy to run the position. Bruce’s masterful restructuring led to a thank-you letter, a lunch in Omaha, and a friendship.
    • Buffett is the reason the first book exists: in 2009 he told Marks “you should write a book, and if you do, I’ll give you a blurb.” Marks had planned to write one in retirement, but you cannot let a note like that sit. The result was The Most Important Thing.
    • What people do not know about Buffett: the depth of his love for Charlie Munger. Buffett’s farewell note described Charlie as the big brother and himself as the little brother, and their relationship was suffused with humor. Marks says the same dynamic describes him and Bruce.
    • Munger’s greatest credited contribution was talking Buffett out of cigar butt investing (picking up discarded companies with three free puffs left) and convincing him to buy great companies at a good price instead of any company at a great price.
    • Buffett and Munger probably had the highest combined IQ of any partnership in history, but different kinds: Munger a classicist, humanist, and man of letters who talked about ideas rather than money; Buffett an incredible computing machine.
    • Book recommendations: A Short History of Financial Euphoria by John Kenneth Galbraith, on the mental weakness that gives rise to booms and busts, and Fooled by Randomness by Nassim Nicholas Taleb, on why in the short run anything can happen, which shapes attitudes toward risk, portfolio construction, and whether a great published track record means skill or luck.

    Detailed Summary

    Changing His Mind on AI

    The conversation opens with the story behind Marks’s updated AI memo. He wrote the first version around December 9th. In early February his son Andrew, a venture capitalist whose portfolio companies use and build AI, told him: “Dad, so much has happened. You have to update the memo.” Marks rewrote it entirely. When the hosts needle him that the sequel sounds “a little seduced,” he pushes back on the framing: he upgraded his opinion because of observable capabilities, including AI’s ability to discuss its own strengths and weaknesses, use humor, and contextualize information to the specific person using it. He identifies two qualities he considers historically unprecedented. First, autonomy: everything from the railroad to the internet was a tool to speed humans up, while AI can be handed a job without being told how to do it, which is also the source of the nagging concern that it may take over. Second, unpredictability: he never once thought the internet was beyond comprehension or prediction, but with AI he says nobody knows the shape of the future.

    What AI Does to Investors

    Asked whether AI will be able to do what he does, Marks reaches for the indexation precedent: index funds revealed that most active equity managers could not do what they claimed, and pushed many out of the business. AI, he says, will “defrock another group of people whose talents are not as great as they purport.” He recalls his old line about computers, which could only read, remember, add, subtract, and compare, yet still beat most people because they did those five things with more data, faster, and without arithmetic or emotional errors. The decisive question for AI is whether its list of capabilities is limited or unlimited, and he admits he does not know. The hosts note that Buffett reading the Moody’s manual page by page is now a task AI does in a heartbeat. What might remain human: events with no history to train on, since so much of AI is pattern recognition over history; superior intuition about the probability distribution of future events; and people judgment, the undefinable signal when the hair on the back of your neck goes up about someone. If AI has no hair on its neck, experienced investors with judgment keep a role.

    Second-Level Thinking and the Limits of Teaching Insight

    Marks retells the origin of his first book: Columbia asked for a sample chapter, he sat down and wrote one he had never consciously thought about, and it became chapter one, on second-level thinking. The idea: if you do not see anything different from everybody else, you cannot possibly be superior. You need a variant perception, a belief that consensus overstates or understates a company’s quality, growth, earning power, or deserved multiple; you must bet on that perception; and you must be right. Can it be taught? He says the answer is more no than yes. He can teach the importance of second-level thinking, but not how to have perceptions that are both contrarian and correct. His analogy: in basketball you cannot coach height, and in investing there is something called insight that some people simply have. Whether AI can have it is, for him, bound up with the AGI question and genuinely unknown.

    Lehman, the $11 Billion Fund, and Investing at the End of the World

    Oaktree’s biggest call illustrates decision-making with no precedent. Before 2007, the largest distressed debt fund in history was Oaktree’s own $2.5 billion 2002 fund. Sensing distress coming, they raised $11 billion in 2007-08 and kept it on the shelf. Then Lehman Brothers failed on September 15, 2008, and people were talking about the end of the world, all financial institutions melting down, everything having to do with money atomizing. Marks cites a Harvard epidemiologist: decisions rest on data, analogies to past experience, and supposition, and at that moment there was no data and no past experience. The reframe that unlocked action: if the financial world melts down and we invest, it does not matter; if it does not melt down and we did not invest, we did not do our job. Bruce Karsh deployed an average of $450 million a week for 15 weeks, about $7 billion in a quarter, buying debt of companies bought by private equity years earlier at prices where Oaktree would break even even if the companies were worth a quarter or a fifth of the buyout price. Quantitatively easy, emotionally brutal: they were, in his words, absolutely not confident.

    Trepidation Is the Price of Admission

    Marks generalizes the feeling in his memo “Taking the Temperature,” which reviews the five major macro calls of his career: all were made with doubt. Markets crash because the news is terrible, and he consumes the same news feeds as everyone else, so the terrible news looks terrible to him too. The difference is overcoming it. People who look at the world probabilistically and admit ignorance and uncertainty cannot act without trepidation, and if you act without any, something may be wrong with you. He recalls the 1998 LTCM and Russian ruble crisis, when a young portfolio manager came to him convinced everything was melting down; Marks heard his concerns and sent him back to his desk to do his job. The battle hero is not unafraid; he is afraid and does it anyway. And the line that anchors the episode: if you wait until you have nothing to be afraid about, the opportunity has probably passed.

    How You Actually Raise $11 Billion

    Pressed on the mechanics of raising the fund, Marks lists the ingredients. Twenty years of managing money well since 1988 created a reservoir of goodwill. The strategy was purpose-built for crisis, with excellent results through the 1991 and 2001-02 downturns. The pitch positioned the fund as a hedge: most investor portfolios are set up for prosperity, so it makes sense to own something that does particularly well when the stuff hits the fan. And Oaktree could point at specific flaws in the environment, chiefly that the market was failing at its main job of acting as a disciplinarian, the job of telling people that a dumb idea does not make sense and will not be funded. When the market stops saying no, dumb ideas get financed, and when they turn out to be dumb, people lose money. He adds the Spy Game line he and his wife love: when did Noah build the ark? Before the flood. You cannot raise money during a crisis because the news is too terrible. Finally, credibility compounding: Oaktree repeatedly raised smaller funds after successful ones, reasoning that great results meant opportunities had shrunk. Two decades of speaking against their own interest meant that when Howard and Bruce said there was a great opportunity, investors believed they meant it.

    39 Years with Bruce Karsh: Shared Values, Complementary Skills, Appreciation

    Marks calls his partnership with Bruce Karsh, 39 years old that month, one of the greatest things in his life after family and close friendships. They have never had a fight, which he attributes partly to neither being a financial maximizer, since most fights are about money. His 2002 memo formula: shared values and complementary skills. Mismatched values, like one cowboy and one chicken, or one ethical partner and one corner-cutter, doom a firm; he illustrates with the AT&T tombstone ad listing roughly 40 investment banks, nearly all of which eventually vanished as the chickens blamed the cowboys in bad times and the cowboys mocked the chickens in good times. Complementary skills mean each partner does what the other cannot: Bruce approached Marks in 1987 with the novel idea of a distressed debt fund, and from the beginning Bruce stayed back managing money while Howard went on the road and, later, on podcasts. The third element is appreciation: thank your lucky stars you have a partner who will do the stuff you do not want to do.

    Parenting Without Asserting Superiority

    Asked how he raised a son he not only loves but enjoys, Marks cites a decades-old Forbes profile of the only psychiatrist with an office on Wall Street, whose patients’ problems were inversely proportional to the support they got from their fathers. He marvels at how many successful men need to prove they are smarter than their sons, and says he always let Andrew be smarter than him in some things while giving full support to whatever his kids wanted to do, provided it was not injurious. When his daughter got into both good Los Angeles schools, he and his wife had a preference but let her choose, reasoning that they could be wrong, neither option was bad, and children need experience making choices, including incorrect ones.

    Live Your Life Your Own Way

    On career choice, Marks confesses he did a terrible job himself: his decisions for his first decades were unconscious and haphazard, and by his own account he did not really make intentional choices until he left to co-found Oaktree in 1995, around age 49. He went to Citibank because of a good summer job, moved from equities to bonds because his equity research was unsuccessful and he was told to get out, and moved to California for sunshine and palm trees. In 1978 the head of the bond department called the fairly idle Marks about “a guy named Milken or something in California” dealing in high yield bonds, and a legendary career resulted from being at his desk when the phone rang, a story straight out of Outliers. His advice to students at Wharton, Harvard, and Columbia is built on his favorite quote, from writer Christopher Morley: there is only one success, to live your life your own way. Find something that plays to your strengths, avoids your weaknesses, and makes you happy, which really means refusing to let friends, society, or parents decide for you, while accepting the hard truth that you will be a different person in 20 years and must choose anyway.

    Humility as Risk Management

    When the hosts remark on his humility, Marks turns it into a risk framework via Mark Twain: it ain’t what you don’t know that gets you into trouble, it’s what you know for certain that just ain’t true. No sentence beginning “I could be wrong, but” or “I don’t know, but” ever got anybody into trouble; the dangerous sentences begin “I’m 100% convinced that.” If you bet as though you are certain and the odds were really 80/20 and the 20 comes up, that is how you get into big trouble. You make the investment because you believe in it, but you must see the other side.

    Buffett and Munger Stories

    The Buffett friendship began in the wreckage of Enron, which did most of its misbehavior through off-balance-sheet entities. Oaktree became the largest holder of the debt of one called Osprey; Warren Buffett was the second largest, gave Oaktree his proxy, and let Bruce run the position, which Bruce restructured masterfully for a big win. Around 2003-04 Buffett wrote Bruce a note saying nice job, and if you find yourself in Omaha, we’ll have lunch; Bruce and Howard promptly found themselves in Omaha. In 2009, Buffett told Marks he should write a book and promised a blurb, which is why The Most Important Thing exists years before the retirement book Marks had planned. What people do not know about Buffett, Marks says, is the depth of his love for Charlie Munger, expressed in Buffett’s farewell note describing Charlie as the big brother and himself as the little brother. Munger’s celebrated contribution was talking Buffett out of cigar butt investing, the practice of picking up discarded companies for three free puffs, and toward great companies at a good price. They probably had the highest combined IQ of any partnership in history, but of different kinds: Munger the classicist and man of letters who preferred talking about ideas over money, Buffett the incredible computing machine.

    Homework from Howard Marks

    His two book recommendations: A Short History of Financial Euphoria by John Kenneth Galbraith, which shaped his objective view of cycles by teaching the mental weakness that gives rise to booms and busts (he was lucky enough to meet Galbraith), and Fooled by Randomness by Nassim Nicholas Taleb, which argues that in the short run anything can happen because of randomness, with consequences for how we think about risk, portfolio construction, and whether a hot track record reflects skill or luck. He notes, with characteristic self-awareness, that his belief in randomness may be his rationale for not being a decisive thinker, and offers his own memos as the “classic comic” version of Taleb. The episode closes with a nod to his January 2021 memo Something of Value, written after three generations of the Marks family spent the pandemic under one roof arguing about value investing with Andrew.

    Notable Quotes

    “If you wait until you have nothing to be afraid about, probably the opportunity has passed.”

    Howard Marks, on why great investments are made with fear intact

    The thesis of the whole conversation, delivered in the cold open and again in the LTCM story.

    “Second level thinking basically says if you don’t see anything different from everybody else, you can’t possibly be superior.”

    Howard Marks, explaining the first chapter of The Most Important Thing

    The variant perception requirement: see it, bet on it, and be right.

    “In basketball there’s a saying, you can’t coach height. And I think there’s something called insight. And I think some people have it.”

    Howard Marks, on why second-level thinking probably cannot be taught

    Also his open question about AI: whether machines can ever have insight.

    “But if we don’t invest and the financial world doesn’t melt down, then we didn’t do our job. So, we have to do it.”

    Howard Marks, on Oaktree’s reasoning the week Lehman Brothers failed

    The asymmetry that justified investing $450 million a week for 15 weeks.

    “A battle hero is not somebody who’s unafraid. It’s somebody who’s afraid but does it anyway.”

    Howard Marks, sending a panicked portfolio manager back to his desk in 1998

    His answer to the LTCM-era fear that everything was melting down.

    “When did Noah build the ark? Before the flood. You got to build the ark before the flood.”

    Howard Marks, quoting the movie Spy Game on raising crisis funds in advance

    Why the $11 billion was raised in 2007-08 and kept on the shelf.

    “No sentence that starts with I could be wrong but or I don’t know but ever got anybody into trouble. The sentences that get people into trouble are I’m 100% convinced that.”

    Howard Marks, channeling Mark Twain on certainty

    His practical definition of humility as a risk-management tool.

    “The key to a successful partnership is shared values and complementary skills.”

    Howard Marks, on 39 years with Bruce Karsh, from his 2002 memo

    Plus the third element he adds now: appreciation for the partner who does what you will not.

    “There is only one success to live your life your own way.”

    Howard Marks, quoting writer Christopher Morley, his favorite line for students

    The advice he gives at Wharton, Harvard, and Columbia, and admits he did not follow until age 49.

    Watch the full conversation with Howard Marks on My First Million here.

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