Excuse my ignorance on this topic but it's not exactly my main topic of study, just a curiosity that came to mind. As I understand it: Big Bang happened, spewing space-time into existence (and if I remember correctly, according to Dr. Kaku, apparently tearing our 4-space out of 10-space). My uncertainty lies on the edge of the universe. Is space-time expanding? If you were to magically teleport to some very distant coordinate, would you be outside of space-time (ignore the paradox) or is it truly infinite? If it is infinite, then the big bang mustn't have "spewed" space-time, but rather... caused it to exist in an instant (since nothing can accelerate fast enough to achieve infinity)? Thanks for clearing this up for me.