I was thinking about the big bang, the universe and thermodynamics, and it led me to the following question. What happens to matter in a cold, super condensed space? The reason I ask is because our universe is expanding and matter is getting further away from other matter. It would seem that if this continued for an extremely long time, all matter would be completely isolated. Eventually, there would be matter so far away from each other, that for all intents and purposes, that single piece of matter would alone in the universe. My question is what would happen to that piece of matter? Big Bang? Just thinking out loud, don't make fun.