What if I were to say that the story of Noah (and most if not all great flood stories) are really based on oral knowledge that represented a creation story; not of Earth's creation or human creation, but the creation of the universe? The characters, even the animals, represent particles, energy/light/matter transfer, quantum field theory, etc - but the versions we have now are so poorly reflective of the original knowledge after a multi-millenia telephone game that they are unrecognizable.
Yes, knowledge was encoded in allegory and myth, so as to be able to survive generations of oral translation. What remains is a strong indication that ancient humans had far more scientific knowledge than we currently do; a better understanding of physics and cosmology.
While this may indicate some kind of creator or god, it doesn't require one, just they forces needed to create our universe.