Garrett Lisi: The Surfer Physicist Who Found E8 Unification

Garrett Lisi, a theoretical physicist and surfer, discusses his Exceptionally Simple Theory of Everything based on the E8 Lie group and its implications for fundamental forces and particles. The conversation also explores spinors, triality, and the challenges of unifying physics outside academia.- 00:00 - Intro- 01:24 - Garrett’s Ted Talk and Background- 08:36 - Mystery of Spinors- 10:13 - Garrett Poses a Physical Problem- 12:22 - String Theorists- 23:48 - Triality- 26:13 - Garrett’s Top Points in His Talk- 28:42 - “String Theory’s the Only Game in Town”- 32:10 - Garrett’s Presentation Begins: Unification- 38:22 - Spinors vs. Fermions- 45:56 - More Particles in Higher Gauge Groups- 48:42 - Threefold Symmetry- 54:00- - Group Theory Overview- 59:37 - Quaternion Group- 01:04:14 - Pin Group- 01:10:25 - Spin Eigenvalues- 01:14:45 - C, P, and T- 01:22:12 - Biquaternionic Spinors- 01:25:55 - Quaternion Triality and the CPTt Group- 01:34:14 - Multi-Generational Fermion States- 01:37:20 - Fermions in Exceptional Unification- 01:42:12 - Exceptional Magic Square- 01:44:22 - Outro / Support TOESPONSORS:- I personally subscribe to The Economist. SUMMER SALE to Aug 17, 2026: 50% off the annual subscription! No other podcast has this! https://economist.com/TOE- Indeed: boost job visibility at https://indeed.com/theories ($75 credit)- HelloFresh: free breakfast for life at https://www.HelloFresh.com/freetheoriesofeverything- Planet Wild: first month free with code EVERYTHING9 at https://planetwild.com/r/theoriesofeverything/joinRESOURCES:- Garrett Lisi’s TED talk on his theory of everything: https://www.youtube.com/watch?v=y-Gk_Ddhr0M- Garrett Lisi’s website: https://li.si/- Garrett Lisi’s papers: https://li.si/Physics/CV.html- Peter Woit on TOE: https://www.youtube.com/watch?v=9z3JYb_g2Qs- Garrett Lisi’s paper on triality: https://arxiv.org/pdf/2407.02497- Support TOE on Patreon: https://patreon.com/curtjaimungal (early access to ad-free audio episodes!)- Crypto: https://nowpayments.io/donation/TOE- Listen to TOE on Spotify: https://open.spotify.com/show/4gL14b92xAErofYQA7bU4e- Become a YouTube Member Here: https://www.youtube.com/channel/UCdWIQh9DGG6uhJk8eyIFl1w/join- Join TOE's Newsletter 'TOEmail' at https://www.curtjaimungal.org- Twitter: https://twitter.com/TOEwithCurt- Discord Invite: https://discord.com/invite/kBcnfNVwqs- iTunes: https://podcasts.apple.com/ca/podcast/better-left-unsaid-with-curt-jaimungal/id1521758802- Subreddit r/TheoriesOfEverything: https://reddit.com/r/theoriesofeverything Theories of Everything with Curt Jaimungal features long-form, technically detailed interviews with leading researchers in physics, mathematics, consciousness, and philosophy, exploring topics at the level of active research. For academics, graduate students, and anyone seeking depth beyond popular science. FOLLOW: Substack | Spotify | YouTube | Twitter Learn more about your ad choices. Visit megaphone.fm/adchoices