Is There a Black Hole in the Universe?

If black holes are the source of expansion in the universe, wouldn't you then see like hot spots of expansion in some places? You would see no expansion. And that would be very, very weird and also not explained in this paper. They don't even really talk about this aspect of it. We have in physics this sort of like hierarchy of scales where really tiny stuff doesn't usually affect really, really big stuff. This would say the things that are happening inside black holes can affect the universe as a whole. That's very, very strange. It'd tell us something very, very new is going on."