In history you read about elves, fairies, little people, spirits. It was an accepted part of reality.
But now that’s obvious nonsense and if you see fairies then you need a doctor.
Are we insane now?
Yes I know, nutrition, literacy and the scientific enlightenment. But still.
A lot of this was about neurodivergent people. How they had become what they are because of malice by fairies, not by happening to be born with a certain neurology that is likely to be even beneficial.