Abhay Ashtekar: Loop Quantum Cosmology Replaces the Big Bang

Abhay Ashtekar: Loop Quantum Cosmology Replaces the Big Bang

Abhay Ashtekar examines Gödel universes, time travel paradoxes, and loop quantum cosmology's latest advances They explore how consciousness, philosophy and physics intersect and debate the prospects of a quantum bounce replacing the Big Bang.- 00:00:00 - Introduction- 00:00:00 - Inner World vs Outer World- 00:05:35 - Buddha's Poison Arrow- 00:11:05 - Merging philosophy and physics- 00:13:33 - Buddha not wrong- 00:19:30 - Studying enlightenment scientifically- 00:23:29 - Psychedelics caution- 00:25:17 - Loop Quantum Gravity overview- 00:36:39 - Wheeler‑DeWitt equation- 00:44:48 - Self‑dual and anti‑self‑dual- 00:48:16 - Hodge dual and metric- 00:52:06 - Linearized gravity- 00:55:32 - Quantum gravity- 01:03:22 - Einstein vs Schrödinger- 01:09:24 - Quantizing geometry details- 01:13:41 - Yang‑Mills theory intro- 01:20:52 - Tetrads and vierbeins- 01:24:26 - Penrose’s twistor theory- 01:26:44 - Einstein’s hole argument- 01:40:48 - Mach’s principle- 01:49:04 - Singularities and black holes- 02:12:18 - Quantum bounce (Ashtekar bounce)- 02:23:07 - Pure and mixed quantum states- 02:26:38 - Black holes and horizons- 02:42:09 - ADM decomposition- 02:43:55 - Gödel universe, time travel, CTCs- 02:52:38 - Superforce question- 02:56:13 - Universe before the Big Bang- 03:01:44 - String theory vs LQG- 03:17:31 - Ed Witten critiques LQG- 03:21:14 - Duality between string theory and LQG- 03:25:20 - Philosopher and monk discussionSPONSORS:- Brilliant: 20% off at https://brilliant.org/TOE- NordVPN: exclusive deal at https://nordvpn.com/theories- Manscaped: 20% off and free shipping with code [EVERYTHING20]- Wren: climate pledge at https://wren.co/theories- Trade Coffee: $30 off first order plus free shipping at https://drinktrade.com/everything- ButcherBox: two steaks and lobster claw free at https://butcherbox.com/THEORIESRESOURCES:- YouTube link: https://youtu.be/03ReIvXKrrU- Patreon: https://patreon.com/curtjaimungal- 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- Merch: https://tinyurl.com/TOEmerch- Physics and Consciousness Contest: https://youtu.be/V93GQaDtv8w- Dialect's video on Newton's Bucket: https://www.youtube.com/watch?v=Jz3mOlUOGoY- Brian Roberts (physicist and philosopher): https://personal.lse.ac.uk/robert49/- The Monk and the Philosopher: https://amzn.to/3Bva2mf- More on the Gödel Universe: https://doi.org/10.1088/1367-2630/15/1/013063- Better Left Unsaid documentary: http://betterleftunsaidfilm.com 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 Learn more about your ad choices. Visit megaphone.fm/adchoices

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Rob Spekkens: Why the Quantum Wave Function Is Not Real

Rob Spekkens: Why the Quantum Wave Function Is Not Real

From Ancient Egypt to Leibniz... Brand‑new interview out with Robert Spekkens of the Perimeter Institute, one of the sharpest minds working on quantum foundations. In 2004, he constructed a classical ...

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Subir Sarkar: Why Dark Energy Is a Local Illusion

Subir Sarkar: Why Dark Energy Is a Local Illusion

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26 Jan 2h 3min

Stuart Kauffman: There Is No Theory of Everything

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This is an interview with Stuart Kauffman, one of the founders of complexity theory. He invented random Boolean networks at only 23 years old and helped establish the Santa Fe Institute. Now 86, he ma...

20 Jan 1h 28min

Timothy Williamson: The Logician Who Says Vagueness Has Exact Answers

Timothy Williamson: The Logician Who Says Vagueness Has Exact Answers

Timothy Williamson (Oxford) challenges modal logic, epistemic possibility, and the nature of philosophical knowledge.As a listener of TOE you can get a special 20% off discount to The Economist and al...

13 Jan 1h 57min

I’m Giving Away $5,000 to Explain Hard Physics (and AI)

I’m Giving Away $5,000 to Explain Hard Physics (and AI)

Host Curt Jaimungal launches #CORE1, a competition seeking high-level video explainers for physics, AI, and philosophy. If you're a researcher or student, you'll have a chance to win part of the $5,00...

18 Dec 202510min

Bas van Fraassen: Why Science Does Not Reveal the Truth

Bas van Fraassen: Why Science Does Not Reveal the Truth

Professor Bas van Fraassen argues science doesn't deliver literal truth about reality, meaning unobservable physics is merely a model. He also contends the self isn't a thing and that logic permits fr...

15 Dec 20252h 17min

Roger Penrose and Ivette Fuentes: A Bold New Test of Gravity

Roger Penrose and Ivette Fuentes: A Bold New Test of Gravity

Sir Roger Penrose and Professor Ivette Fuentes analyze the Ron Folman T-cubed experiment and whether the equivalence principle holds in quantum mechanics. They also detail gravity's role in wave funct...

25 Nov 20251h 13min

Curt Jaimungal: The Most Terrifying Philosopher I’ve Encountered

Curt Jaimungal: The Most Terrifying Philosopher I’ve Encountered

Curt Jaimungal dives into Kierkegaard’s three stages of life—aesthetic, ethical, and religious — showing how each promises freedom yet traps us in its own way. Through the lens of modern anxiety and c...

20 Nov 202518min

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