QUOTE(vef3oh @ Aug 17 2007, 08:55 PM)

How can parallel universes exist? Supposedly, there are an infinite number, each universe differing based on what is possible. But if it is in fact true that for each possibility of something, there is a universe, then wouldn't there be a universe where people travel to each universe and kill everyone, because of because there is a possibility of that happening? So therefore, parallel universes cannot exist, because if they did, then we wouldn't be here, because there would be a universe where people come and kill everyone in each other universe. Can you guys understand what I'm trying to say? Haha, probably not xD
I don't think there would be a possibility of going from one parallel universe to another if they existed in that sense. The space "inbetween" the two universes would have to be in a dimension other than the "4th from the 3rd's perspective." (the one that we occupy) It would be impossible to travel INTO that space and OUT OF that space from this dimension as a three dimensional object because there is nothing for the 3rd dimension to grab onto.
I think this universe in itself is a fluke to have somehow managed to join the 3rd and 4th dimension. I think the whole reason the big bang took place to begin with is because what we perceive as this universe was initially completely motionless within a higher dimensional state. Something caused the motionless to lose its harmony and all of a sudden there was a hell of a lot of friction and outward force in the 3rd/4th dimension which demanded rapid expansion due to the physical laws that came into play when it happened. (This would also explain why scientific laws break down as we near the beginning of the universe, thats simply because at the beginning this dimension didn't exist and you can't apply our laws to something that doesn't perceivably exist.)
The 5th seems to exist but we can't interpret it directly, only postulate. Its supposed to be every possible event that could occur in the 4th dimension. It can't exist along side the 3rd dimension like the 4th does it would have to happen just beyond.. Try imagining what it must be like reaching out from a 2d world into a 3d world. This is what this is like you can't quite do it but it is there.