There are various proofs going back to Penrose and Hawking. They say that if you get enough energy into one place of the universe, then there needs to be a singularity either in the future or in the past. The equations of general relativity do not pick out a direction of time. So why would anyone think that this was a sensible thing to say we live inside a black hole?
Welcome to the February 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!
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The big news this month is the successful awarding of the first ever Mindscape Big Picture Scholarship. Congratulations to Lyat Melese and Rehman Hassan! We continue to collection donations for next year’s scholarship contest.
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