Last one's incorrect, that's for sure. But you got me thinking about dimensions again. About your topic, I don't believe in parallel universes, but I do believe in not-parallel but different universes, such as that we are just living on an electron, the earth, and that the sun and the stars are just really big atoms and that our atoms exist out of multiple atoms as well.
/Offtopic When you had a mirror ball, which mirrored on the inside, and which is invisible from the outside, how would that look like? Would it explode when you put a light on it?