We haz a winner.
Every idea proposed to explain our creation/evolution is a hypothesis (an educated guess based on what we (think we) know for sure, and certain beliefs). Even if we manage to prove without a doubt the existence of Evolution, we still have the question of whether Evolution itself was mere chance, or by design. As we don't currently have means of time travel, nor centuries (or millennia) to spend on repeatable experiments, obtaining undeniable proof of either is unlikely to happen, at least, within any of our lifetimes.
And without proof, we also lack understanding. This is why I think arguing over this topic is utterly stupid and childish. (seriously, imagine two full grown adults arguing over whether Java or C++ is better, with neither having programmed anything in their lives. )