Based on what we know, if a human were to survive past the event horizon, would they see the universe fast-forward all the way to heat death? Would it move backwards? Or would spacetime break down in such a way that it’s impossible to know?
In: Physics
No.
As you cross an event horizon, the light that you see doesn’t change in those ways. The light you see left many years ago, and it’s just like you, following the steeply curved spacetime. The steep curve makes much of the previously visible universe no longer visible, an effect like you see in a [curved mirror](https://skyandtelescope.org/wp-content/uploads/bh_illo_480px.jpg).
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