Retired Off Apple Stock Then Revolutionized Physics Living in Hawaii | Garrett Lisi

Theories of Everything with Curt Jaimungal

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2M ago 1:53:23

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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.

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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

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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