I was surprised when I recently discovered that non-institutionalized people thought the Earth was flat (and associated conspiracy disorders), and that I know some! A good bit of it is attached to the insanity of Christianity, but some are just into the idea of "secret knowledge", which is actually bogus knowledge.
Avoid these people at all costs! What a time/brain suck!!
Definitely!
I try to make optimistic "excuses" for these people. They're skeptic at heart, they just lack the IQ to properly apply they're skepticism.
They are not at all skeptical about accepting highly imaginative contrivances from unknowledgeable "foilheads" that contrary to well established facts that we constructively use everyday.