Imagine as you watch this OK Go video that you were told that the system designed for the video had somehow been erected by mindless forces acting by chance and you'll get some idea why so many people just feel intuitively that life is the work of an intelligent Engineer. After all, a single cell in your body is far more sophisticated and carries far more information than this amazing contraption:
Remarkable, no? But I suppose that given a couple million years the parts and the precise arrangement of this system could have accidentally been constructed. I mean, it's possible - in the same way that a bullet fired at random into outer space could possibly hit a dime-sized target on the other side of the universe - and according to a lot of Darwinians, as long as something's possible that's the same as being inevitable.
RLC