Wow, is it that hard to understand? Really?

It's possible that the God that Christians worship is real and that he created everything, yet the evidence is heavily against it. I don't claim that it's IMPOSSIBLE that the Christian God exists, but I think it's silly to believe that he does, since the evidence is pretty heavily against it.

It's possible that all of the people I know are aliens and they're all studying me as some sort of experiment. According to you, if I believed that, I wouldn't be an idiot?

It's possible that you're capable of intelligent thought. However, the evidence is pretty strongly against that.

As I've already said, believing something when the evidence is heavily against it is idiotic. It's foolish.