Uploaded August 2022 | Updated September 2026, 3 weeks ago

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After posting my video about how to teach yourself general relativity, there were still many questions. I thought I'd follow it up with a Live Q&A.
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TIME CODES
00:00:00 Welcome
00:01:28 What To Expect
00:03:20 Geodesics
00:11:23 Einstein's Equation
00:14:06 Dark Energy
00:18:57 Types of Math Involved
00:21:30 Weak-Field Approximation
00:27:10 Mass-Energy Equivalence
00:31:06 Black Holes
00:36:45 Stress-Energy Tensor
00:41:47 Could I Be Wrong?
00:46:02 Alternative Explanations
00:51:24 My Pet Monster
00:52:58 Statistical Mechanics
00:54:22 Gravitational Constant
00:55:04 Hubble Parameter
00:58:15 James Webb Space Telescope
01:00:47 "Flat" Universe
01:05:09 More JWST Questions
01:07:40 Big Bang = Terrible Name
01:11:00 Local Definitions
01:14:25 Hubble's Law
01:15:33 Inside Black Holes
01:25:23 How vs Why
01:27:50 Gravity is 4D
01:30:00 Multiple Time Dimensions?
01:31:55 Conservation of Energy
01:32:36 Nothingness
01:35:03 Thank You