What if, say, all that we have known is actually wrong?

There are no flat-earthers. The Flat Earth Society isn’t serious.

Well I know that’s a lie because Charlamange is speled wrong.

The point is: if everything we know is wrong, how come it works?

(Also, if time wasn’t real, how could people ‘move on’?)

Of course, that presupposes that the indoctrination of these “cults” or groups is somehow less correct or “wrong” compared to the “standard” cultural indoctrination of the society or societies in opposition. Cultural indoctrination is kind of like an accent, everybody’s accent is funny except for yours… or “What accent? You’re the one with the accent.”