Re: I doubt he was bright enough to build a rocket
It'd a bold claim "none of them really believe it". People genuinely believe in fairies in their garden, and all kinds of things weird and wonderfully silly.
Arrogant really, or at least very lacking in empathy that you genuinely don't believe people believe something just because you find it stupid. A sign you've not been exposed to a wide cross-section of the world... get outside more.