Is There a Big Crunch in the Universe?

We don't know how to simulate the whole history of the universe and accurately predict the number of black holes, so these simulations are our pproximations. As each sort of local clump of gravitationally dominated matter alls into a mega black hole, which is super separated from all the other clumps of matter, you end up wouth like a universe with lots and lots of black holes in it and nothing else. So there's definitely a lot of uncertainty there, sure. And this also has consequences about, like, the fate of the universe,. maybe that means that the universes don't implode eventually.