this post was submitted on 13 Jun 2023
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[–] throwing_handles@lemmy.world 2 points 2 years ago* (last edited 2 years ago)

You may have heard that you can survive a short while after falling below the event horizon of a supermassive black hole. If we extend general relativity further in, for rotating black holes there is an inner-horizon where escape velocity falls back below that of light.

As you approach this inner horizon though, all the matter and spacetime that has ever fallen in and will fall in gets compressed into a single moment at the surface. The dying star matter from its creation would be just in front of you, and everything that falls in in the future would rush up behind you. (Spaghettification would still kill you before getting that close though.)