The Importance of Time Reversibility in Black Hole Events

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In a black hole, there is already a time orientation to the event horizon. So it's not like a glass shattering on the ground. What you can do is imagine time reversing the whole shebang and then you get a white hole. The idea of a black hole is by itself irreversible. How different could an alien physics or cosmological theory be given that they are looking at the same universe but perceive it very differently?

Welcome to the June 2023 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). We take questions asked by Patreons, whittle them down to a more manageable number -- based primarily on whether I have anything interesting to say about them, not whether the questions themselves are good -- and sometimes group them together if they are about a similar topic. Enjoy!

Post with questions and full transcript: https://www.preposterousuniverse.com/podcast/2023/06/05/ama-june-2023/

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