John Harrison

@bfirsh @AnthropicAI Congrats, Ben!

I’ve joined @AnthropicAI, on the Labs team. The team that produced Claude Code, MCP, Cowork, etc. Looking forward to building again.

contrarian view, and I agree

In our annual letter, we describe the progression we expect in agentic commerce. You tend to hear the later levels discussed in the hype, but we're already seeing lots of activity in levels 1 and 2 of agentic commerce. Read more: stripe.com/annual-updates…

@CFBKings a lot of people go to school for 9 years... they're called doctors

Montana linebacker Solomon Tuliaupupu will be returning for his 9TH SEASON on a College Football team next year 😳 Solomon was a 4🌟 recruit in the class of 2018 who began his career at USC, but suffered season ending injuries before each of his first four years with the Trojans. He played at USC during the 2022 and 2024 seasons, and then transferred to Montana last year where accounted for 43 tackles. 2026 will be the 4th year he’s actually played in games, but his 9th overall on a CFB roster.

"It is better to err on the side of optimism and be wrong, than err on the side of pessimism and be right, for quality of life." - Elon

Congrats to @bfspector, @amspector100, @aidanmantine and the entire @flappyairplanes team! This company is an absolute talent magnet. Excited for the future!

@bfspector Let's go!

Very proud of the team we've assembled! Back to work!

@SahilBloom Agreed. "Everybody has a plan until they get punched in the mouth." - Mike Tyson

The older I get, the more I realize preparation always beats planning. Planning is based on the expectation of order. Preparation is based on the expectation of chaos. Plan for order and you'll be destroyed by chaos. Prepare for chaos and you'll thrive in any condition.

@axiommathai @CarinaLHong Congrats, Carina!

Congratulations to our founder @CarinaLHong: she was just named Forbes 30 under 30 (AI category) for her work building Axiom!

Unlike sports betting sites, on Polymarket users set the odds themselves through peer-to-peer betting, explains CEO Shayne Coplan. cbsn.ws/3XP3poV

🚀 Aleph prover just went BEAST MODE 4 math problems unsolved for 20+ years. Formal proofs in Lean 4. Less than 48 hours. Under $5k total. ✅ Binomial tail bounds conjecture (Telgarsky, 2009) ✅ Quantum gate lattice approximation (Greene & Damelin, 2015)* ✅ Erdős 124 ✅ Erdős 481 ✅ #1 on PutnamBench leaderboard The era of AI mathematics is here. Special thanks to @BorisHanin and @ylecun for helping bring this to life 🙏 And massive kudos to the @LeanFRO team — none of this is possible without the incredible foundation you've built. Aleph will be soon available to the public, stay tuned! *conditional on results from Sardari (2015), formalization pending

thankful

Congrats to @BrendanFoody , @adarsh_exe , @suryamidha, Sundeep Jain and the entire Mercor team. Just getting started!

Polymarket is coming back to the US. 🇺🇸 Get on the waiting list to get early access to Polymarket's fully regulated U.S. trading platform:

Best player in game, maybe ever.

"Hard work guarantees you nothing, but without it you don't stand a chance" - Pat Riley

Markets on everything. We’re proud to announce that $ICE, the owner of @NYSE and the largest exchange company in the world, is making a strategic investment of $2 billion into Polymarket, valuing us at $9 billion post-money. Our partnership with ICE marks a major step in bringing prediction markets into the financial mainstream. But in addition to that, it’s a monumental step forward for DeFi. ICE is the one remaining founder-led exchange company, and Jeff is all-in on utilizing his assets, including NYSE, to usher in a new financial era of tokenization. We’re humbled to be working together on this endeavor. ICE will also begin distributing Polymarket data to thousands of financial institutions around the world. There is so much to build when you combine the force of ICE’s institutional scale and credibility with Polymarket’s consumer + cultural savvy and distribution. The past two years have been surreal. Going from a write off to creating a category, watching our vision become a reality. The Polymarket origin story is funny because it's a rare case of the dream being identical to how things played out. If I learned one thing, it’s that bold ideas are everywhere, hidden in plain sight. It just takes someone crazy enough to spend their life willing it into existence. That’s entrepreneurship: willing things into existence. I remember reading Robin Hanson’s literature on prediction markets and thinking - man, this is too good of an idea to just exist in whitepapers. There were a million reasons why it shouldn’t work, countless arguments of why not to do it, and the odds were against us, but we had to try. At the onset of the pandemic, I quite literally had nothing to lose: 21, running out of money, 2.5 years since I dropped out and nothing to show for it. But I knew we were entering an era where ways to find truth would matter more than ever, and Polymarket could play a critical role in that. After all, nothing is more valuable than the truth. It’s still a work in progress, but we’re honored to have made the impact we have thus far. I’d also like to give a special thank you to all of our users, builders, and community members who have been with us since 2020. Your support will not be forgotten 🔮 Last but not least, I am deeply grateful for all of the support and hard work of my brilliant team. I’m getting to live my wildest dreams, seemingly against all odds, and I don’t take it for granted. The best is yet to come… 🇺🇸 Que Sera Sera

The American Dream

People who complain wind up with more things to complain about. Life is generous with annoyances if you’re constantly looking for them. But fortunately, the same is true of blessings. The lens you choose shapes the life you live.

Career advice everyone needs to hear: