Peter Woit: Unification, Twistors, and the Death of String Theory

Peter Woit: Unification, Twistors, and the Death of String Theory

Prof. Peter Woit critiques the decline of string theory and outlines his gravi-weak unification approach using Euclidean twistors in Euclidean spacetime. He also examines the role of mathematicians, machine learning, and philosophical issues in the search for quantum gravity.- 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 lifeSPONSORS:- Patreon: https://patreon.com/curtjaimungal (early access to ad-free audio episodes!)- Crypto: https://tinyurl.com/cryptoTOE- PayPal: https://tinyurl.com/paypalTOE- 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- Pandora: https://pdora.co/33b9lfP- Spotify: https://open.spotify.com/show/4gL14b92xAErofYQA7bU4e- Subreddit r/TheoriesOfEverything: https://reddit.com/r/theoriesofeverything- TOE Merch: https://tinyurl.com/TOEmerchRESOURCES:- YouTube link: https://youtu.be/9z3JYb_g2Qs- Not Even Wrong (Peter Woit's Blog): https://www.math.columbia.edu/~woit/wordpress- Not Even Wrong (Peter Woit's Book): https://amzn.to/40NFeaK- Spacetime is Right-Handed (Peter Woit's Article): https://www.math.columbia.edu/~woit/righthanded.pdf | https://www.math.columbia.edu/~woit/wordpress- Podcast w/ Edward Frankel: https://youtu.be/n_oPMcvHbAc- The Elegant Universe (Brian Greene): https://amzn.to/3sNmk7x- The Trouble With Physics (Lee Smolin): https://amzn.to/47lCCUj- Podcast w/ Sabina Hossenfelder on TOE: https://youtu.be/walaNM7KiYA- Podcast w/ Stephon Alexander Part 1: https://youtu.be/VETxb96a3qk- Podcast w/ Stephon Alexander Λ Sal Pais: https://youtu.be/PE4C7OI7Frg- Podcast w/ Eric Weinstein: https://youtu.be/KElq_MLO1kw- Podcast w/ Stephen Wolfram Part 1: https://youtu.be/1sXrRc3Bhrs- Podcast w/ Stephen Wolfram Part 2: https://youtu.be/xHPQ_oSsJgg- Podcast w/ Jonathan Oppenheim: https://youtu.be/NKOd8imBa2s 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 Learn more about your ad choices. Visit megaphone.fm/adchoices

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Renato Renner: Quantum Mechanics Contains Its Own Contradictions

Renato Renner: Quantum Mechanics Contains Its Own Contradictions

Renato Renner (ETH Zurich) proves quantum mechanics contains logical contradictions that undermine its foundations.Quantum theory may be the most successful theory in history — and Renato Renner has p...

30 Maalis 3h 26min

Jenny Wagner: What If We've Been Wrong About Dark Matter For Decades?

Jenny Wagner: What If We've Been Wrong About Dark Matter For Decades?

Jenny Wagner examines the inverse problem: how to map dark matter without assuming what it is.What if 85% of the universe's matter isn't missing — it's just that our models were never clean enough to ...

26 Maalis 2h 38min

Curt Jaimungal: Why Write?

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19 Maalis 6min

JB Manchak: Time Travel in Physics and What We Still Don't Know

JB Manchak: Time Travel in Physics and What We Still Don't Know

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16 Maalis 2h 17min

Curt Jaimungal: General Relativity Is NOT Deterministic (Here's the Proof)

Curt Jaimungal: General Relativity Is NOT Deterministic (Here's the Proof)

Many people think physics / reality is either guided by a probabilistic distribution or is “determined.” Actually, there’s a third, far‐more unsettling option. Curt Jaimungal explains why Einstein’s g...

12 Maalis 21min

John Donoghue: We Have Already Quantized Gravity (And It Works)

John Donoghue: We Have Already Quantized Gravity (And It Works)

Professor John Donoghue explains why quantum physics and gravity actually work perfectly together. He tackles quadratic gravity, effective field theory, and random dynamics, arguing that grand unifica...

11 Maalis 1h 6min

Nir Lahav: A Relativistic Theory of Consciousness from Spacetime

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A physicist proposes a relativistic theory of consciousness based on spacetime geometry and information.Physicist Nir Lahav joins me to argue that the hard problem isn't hard so much as confused—a con...

5 Maalis 3h 8min

Curt Jaimungal: Why Neil deGrasse Tyson Gets "Belief" Wrong

Curt Jaimungal: Why Neil deGrasse Tyson Gets "Belief" Wrong

Curt Jaimungal argues that astrophysicists like Neil deGrasse Tyson and spiritual gurus Deepak Chopra and Thomas Campbell can’t logically claim they don’t hold beliefs. This “Theories of Everything” w...

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