Deities really don't solve much, do they?
What's the basis of morality?
Moral philosopher: Well, that's a complicated question. Arguably, it stems from an agreement between the members of society... [writes a detailed book]
IDiot: Some magic man in the sky randomly made it up!
Where did the universe come from?
Cosmologist: We aren't sure, yet. We've been working on the math with M-theory, and think our universe might have come from some strange events in a bigger universe that's hard to understand in our concept of time. This is, of course, just a hypothesis at this point, and we'll have a better idea when we slam some particles together harder than we've ever slammed particles together before.
IDiot: A magic man randomly popped in from nothing and did it all!
How did the complexity of life arise?
Molecular biologist: Here's a lot of complicated chemical interactions that obey the laws of thermodynamics.
IDiot: A magic man of infinite complexity just happened to fall together in a human-like manner and create a less complex universe!
See what I mean?