this post was submitted on 10 Dec 2025
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It really helps to understand that a black hole isn't a point in space, it's a point in time. After you cross an event horizon, you will see the universe outside accelerate as you fall closer to the singularity, in fact if you didn't get stretched out into particles you would see the whole universe disperse and grow cold suddenly.
If you're across the event horizon of a supermassive black hole you have more space and time to play with and can exist for a very long time before you get pulled to spaghetti, but that singularity is always in your future. It doesn't matter which direction you fly or whatever tools you use, the center is always in your future.
Right but outside of the black hole, outside of it's gravity well, time moves faster. So how much time would have passed outside the black hole?
The difference between rates increases as the observer's spacetime gets more and more distorted, so the closer you get to the black hole the faster times moves outside the event horizon.
To the extent that from the singularity itself, the outside universe is equally stretched out to forever since all reference frames are equal, so outside a literal infinity passes... and no we don't have any understanding what this means, only that it seems to exist like this and this is one of many problems we still have with our understanding of black holes.