And you've asked about 50% of it.
Anyways, since you're from the south and clearly incapable of any sort of intellectual discussion that is deeper than pastry, I'll try and keep it simple.
As Brent had mentioned and I suggested, the cause of the big bang was all matter from the universe (a previous one) condensing to the point where it could condense no more and thus expanded outwards creating this universe. The theory that we're speaking of then states that the universe will continue to expand until a certain point (which hasn't yet been reached). At this point the universe will invariably contract (equal and opposite reaction), and continue t do until it reaches the point it did about 14 billion years ago. Where it can't get any smaller and expands outword. Thus its entirely possible for there to have been stars, planets, life, and even brain dead southerners with child-like math skills, before the 'creation' of our universe as we know it.
actually the most likely fate of the universe will be heat death