Garrett Lisi is a theoretical physicist known for his work on the "Exceptionally Simple Theory of Everything," which proposes that the E8 Lie group can describe the fundamental forces and particles in the universe. Lisi is also an avid surfer and has gained attention for his unconventional approach to physics outside of academia. SPONSOR (THE ECONOMIST): As a listener of TOE, you can now enjoy full digital access to The Economist. Get a 20% off discount by visiting: https://www.economist.com/toe LINKED MENTIONED: •⁠ ⁠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 TOE'S TOP LINKS: - Support TOE on Patreon: https://patreon.com/curtjaimungal (early access to ad-free audio episodes!) - 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 SPONSORS (please check them out to support TOE): - THE ECONOMIST: As a listener of TOE, you can now enjoy full digital access to The Economist. Get a 20% off discount by visiting: https://www.economist.com/toe - INDEED: Get your jobs more visibility at https://indeed.com/theories ($75 credit to book your job visibility) - HELLOFRESH: For FREE breakfast for life go to https://www.HelloFresh.com/freetheoriesofeverything - PLANET WILD: Want to restore the planet's ecosystems and see your impact in monthly videos? The first 150 people to join Planet Wild will get the first month for free at https://planetwild.com/r/theoriesofeverything/join or use my code EVERYTHING9 later. TIMESTAMPS: 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 TOE Other Links: - 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 #science #sciencepodcast #physics #theoreticalphysics Learn more about your ad choices. Visit megaphone.fm/adchoices

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“What did the council decide on item 42?” — answered with the speaker and the moment.