The universe started with a big bang, which created time and space; when time was new, so was space and matter. Time "grows" in the same speed as the space, as the universe is constantly expanding. To travel in time, you should overcome the speed in which the universe expands. The "room" outside the universe is nothing, which means that there's no time and space. Perhaps this means that it's another universe, only operated by other dimensions than time and space. I know there is a sepperate spiritual forum, but I'll write this here anyways: Perhaps that "proofs" Heaven, only Heaven being the other dimention which the soul travels to, as the soul is not proven to be neither time nor space, which makes it universal. Perhaps there are more universes, which proves the Buddhism theory about 7 bridges/7 Heavens, which is each states in which the universal soul can exist. That is is 7 states, might not be right; it might have been the fact that the number 7 was considered special, as with 3. The Buddhists achieved those different states doing meditation; they meditated and their body fell asleep and broke it's connection with it's soul, so the soul was free to travel. Then the soul traveled to the first plane, then with further meditation (harder), the second plane, and so on. Nobody is ever known to have reached the 5th plane. The idea that you can only move to another plane when you die meditating might be because your body lets go of the soul when you die, and is stuck in the plane where you died, so you have to be meditating and be on a different plane, to stay there when you die. That can either be right or wrong.