>>10870016One major finding associated with autism is a lack of synapse pruning, meaning their brains, much like themselves, resist change and hold onto familiar patterns more tha. a non-autist brain would.
So given the dysfunction of autism, you could say one reason forgeting is useful is in avoiding that.
It's similar to why death is useful for biology. Getting rid of old junk helps allow for better new structures to form without getting obstructed by the old and obsolete.
