Silicon Valley entrepreneur (cofounder@ TrialPay, Yub, Affirm, Point, TXN), investor (General Partner @a16z), husband, father and sarcast (one who is sarcastic)

Palo Alto, CA
“Science is the belief in the ignorance of experts” -Richard Feynman (1966) feynman.com/science/what-is-…
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Alex Rampell retweeted
Today we establish that AI is as good as expert human tutors for immediate GRE learning gains (p=.015, n=2,383 students, study conducted July-Sep 2026). One hour with an expert GRE tutor: $75. One equivalent hour with an AI tutor: 7 cents . 918x cheaper, equivalent learning (p=.044, n = 140). In 5 of 7 academic topics, the top AI tutor beat the expert human tutors on average. How we measured it: pre-test -> 1 hour with (AI or human or no) tutor -> post-test. There are no LLM judges. Learning gains are post-pre. Everything is real students. Why we did this: > 1 trillion USD is being spent per year on machines making machines better. StudentBench shows us how to shift these resources so machines also make humans better. Why I did this: I grew up in rural Kentucky. My dad, grandad, and great grandad were all mailmen. Getting into a good college changed my life. Now we have done a rigorous study to help AI labs evaluate LLMs and help show how bright AI can be for students of all incomes. I believe in good science that leads to the democratization of opportunity. The research paper behind StudentBench: arxiv.org/abs/2609.28470 Data, code, details: in this thread If you're wondering what I'm selling, sorry to disappoint: we released all study data for free on Hugging Face, and made studentbench.org free to use. Enjoy. lots more in the video / thread!!
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Alex Rampell retweeted
WATTERS: “If Bernie were around 100 years ago, he probably would’ve demanded Henry Ford stop building cars while he stood next to a horse.”
🚨🚨 Socialists Bernie Sanders and Greg Casar just introduced the “Ban Artificial Superintelligence Act.” Here’s what it would do: • Ban AI the government deems to surpass human intelligence • Pause advanced AI development • Make D.C. bureaucrats the gatekeepers and create a new Department of AI • Threaten developers with up to 20 years in prison The proposal would freeze America’s leading AI labs while China keeps building, let Washington pick winners and losers in AI development, and impose criminal penalties on developers who build systems the government deems too advanced. The test for every AI policy: does it make America stronger, safer, and richer? This bill clearly fails.
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We (@venturetwins and I) wrote this a year ago and it’s finally starting to happen!
1/ How will AI commerce start? Sometimes the best way to predict the future is to observe the present. Millions of people who value their money more than their time already hunt or wait for deals. Including me:) I had an alert for Spindrift, it cleared my price, and I bought.
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I love this product. I can’t live without it because I can’t sleep without it. @m_franceschetti and team — thank you!
BREAKING: Pod 6 is live. The sixth generation of our intelligent sleep system, redesigned for every kind of bed. ✅ The new Hub is small enough to fit under your bed frame ✅ More powerful than ever ✅ With 9x more sensors for enhanced accuracy ✅ In new Solo sizes, at our lowest starting price yet This is our most significant hardware launch to date, and our most accessible. Available now at eightsleep.com
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Coupons used to neatly divide people who cared about money from those who cared about time You had to CLIP the coupons from the Sunday paper. The toil was the point, and the assurance that grocers and CPG companies weren’t just cannibalizing existing sales. AI agents change that!
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The new unicorn is “under $1B”
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Alex Rampell retweeted
new summation pod with @arampell, general partner at a16z who runs their $2.7 billion Apps practice and led early bets on Plaid, Mercury, and Opendoor. we get into why Visa is the purest network effect business on earth, why the best companies have hostages not customers, and what was once payroll becoming payments. piped.video/watch?v=hLk25S88…
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Alex Rampell retweeted
Databricks' @alighodsi says "Right now the existential risk is close to zero." Why he thinks the public doom talk is irresponsible: "Leaders have responsibility to not freak people out unnecessarily unless there's really, really good reason." "Talking about these kind of existential risks and scenarios where all of humanity's gonna be wiped out, I think is irresponsible. It can tip a lot of people over, and it can cause a lot of mental health issues." "If there is an actual reason for it, that's a different story. But I think that right now the existential risk is close to zero. So why freak everybody out? It's not actually needed. There are risks. We'll get into it. That's probably where we disagree." "First and foremost, I think leaders should not freak everyone out." "If there's technical nuances in how we're doing AI research, researchers can discuss that. You don't need to every time go on TV and blast on Twitter to millions of people that 'I think there's like this 10% risk that all humanity is gonna be wiped out.'" "I think it causes a lot of harm for a lot of folks who get stressed out and actually are not in the nuances of all of this stuff and what it means." @alighodsi @sarahdingwang @martin_casado
Databricks' @alighodsi on AI risk and adoption: Ali isn't losing sleep over the existential risk debate. He says a number of conditions would all have to be true simultaneously to enable an actual runaway takeoff scenario, and currently several opposite conditions exist. Each frontier training run requires significantly more resources. Power, GPUs, engineers - and some attempts fail, burning up huge piles of money with them. Until that reverses, he doesn't see the self-improving loop happening. Cyber is what he's watching most closely and where he anticipates real impact. Most orgs are not equipped for the coming change in agentic capabilities. The time between a vulnerability being published and being weaponized has collapsed from years to hours. On adoption, he believes most companies don't need a smarter model. The models are already smart enough. The gap is context they don't absorb - the things an employee who's worked at a company for five years learned by osmosis. If the frontier stopped advancing today, he thinks it wouldn't meaningfully change the value most are extracting from AI anyway. In conversation with a16z's Martin Casado and Sarah Wang: 00:00 Intro 00:48 Why Ali places the AI risk near zero 05:05 The word "pacing" was a mistake 10:50 What 10k agents and $100m can do 12:20 What would change his mind on AI risk 14:20 More GPUs, more ways to fail 18:05 US export controls on PlayStations 20:10 The damage everyone expected by now 24:30 Public vulnerabilities weaponized in hours 30:15 Why labs can't grade each other 37:15 Why most of RSI isn't actually RSI 40:05 Why nobody really needs a smarter model 41:50 The AI use cases nobody argues about 47:30 Google Search solved this 25 years ago 50:55 Nobody has privileged knowledge now 55:10 Same model, new harness, 2x cost 58:15 Open source: 5% of spend, 60% of tokens 1:05:30 90% of new databases are created by agents YouTube: piped.video/GzEtpAKYRvE @databricks @martin_casado @sarahdingwang
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How many things in the world are as they are because of friction and inertia? A lot! What happens when “the marginal cost of arguing” goes down to zero? Bad news for shitty companies providing shitty service. They have no idea what kind of storm is going to hit them.
Very excited -- after hitting a dead-end with @WellsFargo stealing money from me, I told Codex to sue them and...done!
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Alex Rampell retweeted
2026: The New York Times cites seriously academics who say AI might end the world 1881: The New York Times cites seriously academics who say telegraphy might end the world newsletter.pessimistsarchive…
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Very excited -- after hitting a dead-end with @WellsFargo stealing money from me, I told Codex to sue them and...done!
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Mercury goes from strength to strength. Your books can’t be out of date if your bank = your books!
1/ Today, we're launching @Mercury Books. AI-powered accounting software, for your bookkeeper or you, that categorizes and reconciles your transactions the moment they happen.
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Alex Rampell retweeted
Today we're launching the new Raspberry. A single collection can take up to 18 months to get to market. It requires trend research, design iterations, technical development, merchandising, campaign assets, wholesale materials, PDP imagery + dozens of handoffs in between. Now you can give Raspberry a goal, build a plan with your Agent, and let it execute the entire workflow with you. From concept → commerce. See what a day with the new Raspberry looks like. Link to our press release in comments.
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Alex Rampell retweeted
What if we just shut down AI for two weeks to flatten the curve?
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Alex Rampell retweeted
"The art of printing can be of great service in so far as it furthers the circulation of useful & tested books; but it can bring about serious evils… …it will, therefore, be necessary to maintain full control over the printers” - Pope Alexander VI, 1501
When elites try to convince you a new technology is a threat to YOU, it is often because it is a threat to THEM.
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GPT-2, 7.5 years ago:
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Alex Rampell retweeted
There is an unseen hand pushing AI safety as a political ideology. Effective Altruists believe a tiny group of technocrats should decide how much technological progress the rest of us are allowed to have…. and how many shrimp your life is worth. You are witnessing their attempted coup. thefp.com/p/dangerous-ideolo…
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Alex Rampell retweeted
“Effective Altruists believe a tiny group of technocrats should decide how much technological progress the rest of us are allowed to have… you are witnessing an attempted coup.”
There is an unseen hand pushing AI safety as a political ideology. Effective Altruists believe a tiny group of technocrats should decide how much technological progress the rest of us are allowed to have…. and how many shrimp your life is worth. You are witnessing their attempted coup. thefp.com/p/dangerous-ideolo…
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Alex Rampell retweeted
You have my give My AI Company the Infinity Stone Government License to Produce AI Ethically because all my pesky competitors are simply not As Ethical As Me and wouldn't qualify for the government license I'm demanding. Pay no attention to my profit margin as a result of this.
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