Well, God, Big bang, either way it all came from "somewhere" right?
Maybe this Universe isn't even real. Well, its as real as we perceive it, but aside from that this whole "Universe" could have become existant, pff, 1000 years ago. But was created with a History, so that we never actually realize how "Fake" it really is. And this is but a massive game, and what we control are just bodies so that we can interact with this world.
Maybe the Universe is infinant, never had a beginning but with our logic (which hasn't failed us all that much) it needs a beginning because everything we see has a beginning and an end. But what if this universe was always as is?
What if the universe is constant in a way that it expands from a ball, expands outwards, then slowly over billions of years, blackholes form, many, and this starts to create a lot of "suction" (can't think of a better word
) and more blackholes form, and more, and eventually the Universe stops expanding and starts retracting back due to the suction of all these blackholes, and the blackholes themselves combine, create larger blackholes and eventually there is only one super massive blackhole that contains ALL the matter of the universe, then the Universe collapses upon itself and the POOF.. another "big bang" and the universe expands shooting all matter out.. and this process keeps repeating itself
Maybe the God theory is correct, everything was created 6000 years ago (or 7, not entirely sure anymore) but with a history, and we are but his sheep.. or however it goes.
Or the Urantia book is correct, where this is the first step amongst many others before we reach "god". The first step is a physical world with time, second step doesn't contain time, and you maintain your knowledge from the first, and so on and so forth.
Its fun to believe in these things, because there is no "real" answer so we use our Imaginations! Of course, some of these are ridiculous, but hey.
My belief, well... that doesn't matter