All-In with Chamath, Jason, Sacks & Friedberg
Bryan Johnson: The #1 Longevity Secret You Can Start Doing Today
14 Oct 2025
(0:00) Introducing Bryan Johnson (0:46) Bryan takes the audience through a quick biological age test (5:53) The single best longevity hack from all of his research Thanks to our partners for making this happen! Solana - Solana is the high performance network powering internet capital markets, payments, and crypto applications. Connect with investors, crypto founders, and entrepreneurs at Solana’s global flagship event during Abu Dhabi Finance Week & F1: https://solana.com/breakpoint OKX - The new way to build your crypto portfolio and use it in daily life. We call it the new money app. https://www.okx.com/ Google Cloud - The next generation of unicorns is building on Google Cloud's industry-leading, fully integrated AI stack: infrastructure, platform, models, agents, and data. https://cloud.google.com/ IREN - IREN AI Cloud, powered by NVIDIA GPUs, provides the scale, performance, and reliability to accelerate your AI journey. https://iren.com/ Oracle - Step into the future of enterprise productivity at Oracle AI Experience Live. https://www.oracle.com/artificial-intelligence/data-ai-events/ Circle - The America-based company behind USDC — a fully-reserved, enterprise-grade stablecoin at the core of the emerging internet financial system. https://www.circle.com/ BVNK - Building stablecoin-powered financial infrastructure that helps businesses send, store, and spend value instantly, anywhere in the world. https://www.bvnk.com/ Polymarket - The world’s largest prediction market. https://www.polymarket.com/ Follow Bryan Johnson: https://x.com/bryan_johnson Follow the besties: https://x.com/chamath https://x.com/Jason https://x.com/DavidSacks https://x.com/friedberg Follow on X: https://x.com/theallinpod Follow on Instagram: https://www.instagram.com/theallinpod Follow on TikTok: https://www.tiktok.com/@theallinpod Follow on LinkedIn: https://www.linkedin.com/company/allinpod Intro Music Credit: https://rb.gy/tppkzl https://x.com/yung_spielburg
Full Episode
True or false? You, Brian Johnson, the man sitting across from me, one day, at some point, as of yet undefined in the future, you will die.
False.
sold Venmo for $800 million, has spent a fortune on a quest to stay young forever.
Don't die is the general theme of what we're trying to do. It's humanity's only objective.
None of us live forever, except Brian Johnson. Ladies and gentlemen, please welcome Brian Johnson.
Hi, guys. OK, everybody stand up. OK, what you're going to do is you're going to choose your left or your right foot. I'm going to count down from three. And you're going to stay standing on your selected foot as long as you can with your eyes closed. OK? Hands by your side. You can't be out. It's got to be close by. Your foot's got to be somewhere close by. You can't be clear out. OK?
So just choose right or left foot. And those of you on the balcony, be careful. If somebody fell off, that'd be a bad situation. OK? Foot selected. Let me pull out my timer. And I'm going to count the number of seconds that pass, OK? Ready? Three, two, one. Close your eyes. Five seconds. 10 seconds. And your foot can't move, stationary. 15. 20. OK, we'll stop there. Who's still up? OK, good.
OK, good. We'll do it one more time. All right. You got, no, no, stay up. This is a biological age test. As you age, part of your brain that keeps you well balanced atrophies, and you can't maintain the balance very well. So kids are very good at this. As you age, you get worse. So if you are between 15 and 30 seconds, that's roughly age 20 to 40. Seven to 15 seconds, you're between 40 and 60.
And zero to seven, you're 60 plus. as an age category, OK? Yep. All right, ready? You can choose again, right or left foot. Your foot's got to be stationary. You can't move it around. Arms close by, OK? 3, 2, 1, go. 5. 10. 15. 20. Make it 30, you guys. 10 more seconds. 30. OK, cool. Good job, you guys. All right, you can take a seat.
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