I've been reading a lot of Michio Kaku's books, and he keeps using the analogy of a crumpled piece of paper with ants walking on it to describe gravity (or force). My question is, if the ant stood on a certain point, wouldn't he not fall? Is there a balance point like this in the universe? This question kind of goes along with another question I have about a time reference point. Time slows down the faster you move, and speeds up the slower you move. What is this in relationship to? I understand that if you are on a space shuttle, and are speeding along past earth, time would go slower than on earth, but what is earth time going slower (or faster) than? Where is the reference point of time? If light is the reference point of time, does that make black holes timeless? What happens when the universe comes to the big freeze and there is no more light? I mean, I get that it won't matter to us when that happens, but I was just curious.