Consciousness Videos

Andrew Strominger: Black Holes, Quantum Gravity, and Theoretical Physics | Lex Fridman Podcast #359



Lex Fridman

Andrew Strominger is a theoretical physicist at Harvard. Please support this podcast by checking out our sponsors:
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EPISODE LINKS:
Andrew’s website: https://www.physics.harvard.edu/people/facpages/strominger
Andrew’s papers:
Soft Hair on Black Holes: https://arxiv.org/abs/1601.00921
Photon Rings Around Warped Black Holes: https://arxiv.org/abs/2211.01674

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OUTLINE:
0:00 – Introduction
1:12 – Black holes
6:16 – Albert Einstein
25:44 – Quantum gravity
29:56 – String theory
40:44 – Holographic principle
48:41 – De Sitter space
53:53 – Speed of light
1:00:40 – Black hole information paradox
1:08:20 – Soft particles
1:17:27 – Physics vs mathematics
1:26:37 – Theory of everything
1:41:58 – Time
1:44:24 – Photon rings
2:00:05 – Thought experiments
2:08:26 – Aliens
2:14:04 – Nuclear weapons

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24 thoughts on “Andrew Strominger: Black Holes, Quantum Gravity, and Theoretical Physics | Lex Fridman Podcast #359
  1. Here are the timestamps. Please check out our sponsors to support this podcast.
    0:00 – Introduction & sponsor mentions:
    – Eight Sleep: https://www.eightsleep.com/lex to get special savings
    – Rocket Money: https://rocketmoney.com/lex
    – Indeed: https://indeed.com/lex to get $75 credit
    – ExpressVPN: https://expressvpn.com/lexpod to get 3 months free
    1:12 – Black holes
    6:16 – Albert Einstein
    25:44 – Quantum gravity
    29:56 – String theory
    40:44 – Holographic principle
    48:41 – De Sitter space
    53:53 – Speed of light
    1:00:40 – Black hole information paradox
    1:08:20 – Soft particles
    1:17:27 – Physics vs mathematics
    1:26:37 – Theory of everything
    1:41:58 – Time
    1:44:24 – Photon rings
    2:00:05 – Thought experiments
    2:08:26 – Aliens
    2:14:04 – Nuclear weapons

  2. String Theory has absolutely been ruled out, because you cant have your working model of physics be “oh it was just in a dimension that we didnt observe this time” Its untestable. And in the 4+ decades its been since it was taken seriously they have not brought fourth anything to test. Super Symmetry is the much more promising for a unifying model.

  3. 4:42. Not true. Bad news…11.2 km/sec only lets you (ballistically) escape earths gravity. to escape to another GALAXY, you must reach the galactic escape velocity of 550 km/sec.

  4. Quantum gravity may not be what you think. The quantum effect it has on mass is relative to the exchanged charge to mass conversion. This field would then interact masses weakened field and overcomes its force and change of velocity of its potential axial positioning. A greater magnetic field realigns superpositions within matter.

  5. I am like a falling star who has finally found her place next to another in a lovely constellation, where we will sparkle in the heavens forever.

  6. Wonderful episode Lex. Andy's laugh and his palpable sense of joy and enthusiasm, are all so infectious and inspiring. What a lovely, brilliant, and humble human being. The hall of mirrors analogy in the photon rings section was pure genius. 🖤

  7. This all seems tangible in conversation until you start asking…where does mass comes from and why? The psychology of "trust"; does this parallel the theological expertise of a preacher? Without "artists", none of this would be palatable. Books with pictures, diagrams, art…sometimes the mind can get carried away with the idea of REAL…when your context of proof in conversation is impossible…like recounting historical events.

  8. 1:50:12 AS “A black hole is a mirror… if light, a photon, … goes straight into the black hole, [it] just falls in [and] you never see it again. But if it just misses the black hole, it’ll swing around [and] you actually see an infinite number of copies of yourself.” Andrew Strominger, except for particles with s-type orbitals relative to the black hole, all matter has some angular momentum. Doesn’t that imply the existence of a “fermion ring” barrier to infalling matter? Such an orbital barrier might be relevant to Yvette Cendes’ recent findings of many examples of years-delayed re-emergence of star tidal signal.

  9. dirac medal for string theory, breakthrough prize, this is a brilliant, humble and peaceful person, kids should look up to this guy instead of rich athletes

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