Nothing. There won't be anyone around. Whatever the Great Filter is, it'll have gotten us by then. Do civilizations annihilate themselves in nuclear war? Do the

Nothing. There won't be anyone around. Whatever the Great Filter is, it'll have gotten us by then. Do civilizations annihilate themselves in nuclear war? Do they use bioweapons they can't control? Do they wreck their ecosystems? Do that transcend into matrioshka brains? Whatever it is, it's something. If there are sentient creatures 58,000 years from now, they won't look or think anything like us, even if they are, technically, our descendants.