YouTube Link: https://www.youtube.com/watch?v=9z3JYb_g2Qs

Prof. Peter Woit discusses string theory, its decline, and introduces his graviweak unification theory using Euclidean twistor in Euclidean spacetime.

TIMESTAMPS:

- 00:00:00 Introduction

- 00:00:00 String theory's fundamental issues | Mathematicians' challenges

- 00:02:20 Spacetime and twistor theory insights

- 00:20:00 Bundles & diffeomorphism groups

- 00:38:34 Spinors as a spacetime point

- 00:46:57 Dominance of string theory & Ed Witten's influence

- 00:54:17 Quest for quantum gravity

- 01:03:22 String theory's lack of predictive power

- 01:09:33 Machine learning meets theoretical physics

- 01:18:56 Personal attacks vs. intellectual debate

- 01:24:49 Mathematicians vs. Physicists | Academic silos

- 01:37:15 Developing a contrarian view & the origin of 'Not Even Wrong'

- 01:40:54 Langlands & representation theory

- 01:48:51 Spacetime is NOT doomed

- 01:58:47 Sean Carroll's crisis in physics (odd responses to criticism)

- 02:13:21 Differentiable structures by dimension

- 02:26:10 Gravi-weak unification & chirality

- 02:32:57 Chern-Simons theory

- 02:42:20 Gravity as torsion or curvature

- 02:50:07 Category theory in physics

- 02:56:43 Defining a fulfilling life

- Patreon:

Peter Woit: Unification, Spinors, Twistors, String Theory

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