First of all. Saying I DON'T KNOW is better than telling an unproved tale of epic ridiculousness. In saying I don't know, you acknowledge that mankind's knowledge is incomplete and that there are more answers to discover. Being content with a theological story of creation is not the path to enlightenment. Enlightenment is the state of knowing everything. While science will never completely enlighten us, it will get us as close as possible (for the calculus geeks like me, enlightenment is a limit).
Second, that is a horrid misrepresentation of the big bang theory. A common misconception is that there was nothing before the big bang. There is evidence that matter existed before the big bang, which caused the universe to occur. While this is quite dandy, it is not enough for theists. It is not enough for scientists, but they try to expand upon it, not refute it because it hasn't been proved (and no, you can't use that argument, because the bang actually has evidence, unlike creationism).
I've said this before, and i'll say it again. JUST BECAUSE WE DON'T HAVE ENOUGH INFORMATION TO PROVE THE ORIGIN OF THE UNIVERSE WITHOUT REFERRING TO GOD, DOESN'T MEAN THERE ISN'T A SCIENTIFIC EXPLANATION FOR LIFE, THE UNIVERSE, AND EVERYTHING (besides 42).
