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Abhay Ashtekar on Gödel Universes, Buddha's Poison Arrow, Time Travel, and Loop Quantum Cosmology

Abhay Ashtekar on Gödel Universes, Buddha's Poison Arrow, Time Travel, and Loop Quantum Cosmology

FromTheories of Everything with Curt Jaimungal


Abhay Ashtekar on Gödel Universes, Buddha's Poison Arrow, Time Travel, and Loop Quantum Cosmology

FromTheories of Everything with Curt Jaimungal

ratings:
Length:
221 minutes
Released:
Aug 1, 2022
Format:
Podcast episode

Description

YouTube link: https://youtu.be/03ReIvXKrrU
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LINKS MENTIONED:
- 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

TIMESTAMPS:
00:00:00 Introduction
00:00:00 Inner World (conscious experience) vs. Outer World (physics)
00:05:35 Buddha's Parable of the Poison Arrow
00:11:05 Philosophy and Physics should be merged
00:13:33 No one wants to say that the Buddha was wrong
00:19:30 Scientifically studying "enlightenment"
00:23:29 When to stop taking psychedelics ("when you get the call, hang up!")
00:25:17 What is Loop Quantum Gravity?
00:36:39 Wheeler DeWitt equation
00:44:48 Self Dual and Anti Self Dual
00:48:16 Hodge Dual and the Metric
00:52:06 Linearized Gravity
00:55:32 Quantum Gravity
01:03:22 Einstein vs. Schrödinger (the behind the scenes scuffle)
01:09:24 Technical details of quantizing geometry
01:13:41 What is Yang Mills theory?
01:20:52 Tetrads and Vierbeins
01:24:26 Roger Penrose's approach to quantum gravity (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 (the "Ashtekar Bounce")
02:23:07 Pure and Mixed Quantum Mechanical States
02:26:38 Black Holes and Event Horizons
02:42:09 ADM Decomposition
02:43:55 The Gödel Universe, Time Travel, and Closed Timelike Curves
02:52:38 Salvatore Pais asks about the Superforce
02:56:13 The universe before the Big Bang
03:01:44 String Theory vs. Loop Quantum Gravity
03:17:31 Ed Witten disses Loop Quantum Gravity and Ashtekar responds
03:21:14 Duality between String theory and LQG?
03:25:20 The Philosopher and the Monk
* * *

Just wrapped (April 2021) a documentary called Better Left Unsaid http://betterleftunsaidfilm.com on the topic of "when does the left go too far?" Visit that site if you'd like to watch it.
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Released:
Aug 1, 2022
Format:
Podcast episode

Titles in the series (100)

Exploring theoretical physics, consciousness, free will, and God. If you'd like to support this podcast, then visit the Patreon (https://patreon.com/curtjaimungal). Thank you for your charitable and kind hearted support. My name is Curt Jaimungal, a Torontonian filmmaker making a documentary on the above topics (as for what shape the final settled project will take, I'm unsure). During the exploratory phase, there will be a plethora of interviews / conversations with intellectuals placed on this channel -- approximately un-edited.