<< Isn't there a thread on this, like, every week?
My god guys, take Astronomy 101 or somethin', it'll answer a lot of questions you have. I just got done with Astronomy in High School and it answered all my questions. And it just reinforced my disbelief in god. >>
or read A Brief History of Time. If more people bothered to read it, it would eliminate 98% of dumbasses in these threads.
Let me tell you something. What existed before the Big Bang is of no consequence. In a singularity, the density of matter is infinite (yes, a hard concept to understand, but it certainly seems that these singularities exist), and becuase of this all laws of physics break down and time actually stops existing. Time itself started at the big bang. Whatever happened before that cannot affect the current universe. Get it?
Like someone said, there is a theory of an 'oscillitating' universe, where a big bang occurs, universe expands, but gravity then brings matter togerther and there is a big crunch, followed by a big bang etc etc. Of course, that can never be proven, only theorized.