Discard my previous comment. I read it wrong and though you were writing about infinite universes, which I think you were not?
So I still think the theory doesn't hold up from the little I know about physics: The universe is not infinite. It expands constantly into *nothing. *And there are two main states: order and entropy. Entropy, which means a balance of equal distribution of everything, will eventually win and that is the state our universe is moving towards. And this state will last forever. Like actually forever.