Autism must have some survival value for it to have survived. Having that one weird person in your village who can't really be trusted on a hunt, but can identi

Autism must have some survival value for it to have survived. Having that one weird person in your village who can't really be trusted on a hunt, but can identify every species of mushroom that grows nearby and tell you which are safe to eat and which aren't, becomes an evolutionary advantage at the tribal level as soon as the tribe can afford it.