Only partially kidding. The flat Earth bit was a publicity stunt in the first place. I know they are full of it, you know they're full of it, and anyone who believes the Earth is flat is incredibly ignorant or delusional.
The ignorant part can be forgiven if they came here from a remote society where they only thing taught is the holy book of a 9th century warlord con man or a tribe the nearest civilization hasn't bothered to reach.
If it's ignorance of an American born adult I have to blame the school system he grew up with..... they should be fired, or ask where this tribe of bronze age folk are. A hollow in the Pennsylvania hills? ( or New York. ) A splinter Mormon faction in cliff dwelling hidden fortress?
The most cut off people I can imagine, the survivors in a cold war redoubt of an emergency haven for congress or SAC that got entombed and abandoned, forgotten in the secrecy and cover ups of the LBJ regime. And if they were military I'd expect them all to educated and trained in planetary nuclear missile science.
I do excuse the gullible stupid, mostly. I know a very nice guy who you could sell anything to. Sad. Son of a friend, great heart, likable and a contributing member of society, and he's getting better. There's a theory that the part of the brain that runs risk analysis doesn't mature until the late twenties to mid thirties in males. This explains the participation rate in high mortality risk activities among young folk. ( and one reason the military and revolutions use them, besides the physical reasons. ) Don't know if the theory is true. Gives me hope. It's probably just because falling down hurts more when you get old.