I don't believe there's anything wrong with the idea. But it's just an idea, it's not a theory, nor is it anything you can test just yet. I have a similar idea, but it's not anything I can ever be certain of or claim as true, much less anything worth writing a book about. That would be called a religion, and as an agnostic, I automatically avoid doing such things anyway.
The idea doesn't make him crazy, what does is his confidence in an idea that is not a theory and cannot be tested. That's magical thinking.
Somewhat related: Newton's Flaming Laser Sword