"But biblical beliefs are so deeply ingrained that even people who would claim not to be Christian still try to come up with explanations for biblical stories. Crazy, isn't it."

I dont think it's crazy, its just been implanted in our culture. For many years, Christianity was the "norm," but not its losing steam to agnosticism and atheism, who try to give different reasons for biblical beleifs. Thus, if you were to say it was crazy, you would be asserting both the Christians and the non-Christians are.
Yeah, the hypotheses or theories about the past are made (some with supporting evidence, some without). It is not crazyness, it is human-ness.
But wait, aren't human-ness and craziness the same?! laugh