That’s an interesting theory, though I think the fae fits better with neurodivergence than other hominids. (Incomprehensible, different, follows strict rules, changelings, unpredictable, etc. I’m autistic and have been called all of the above multiple times)

But again, this is just a shower thought- I’m enjoying finding more overlaps, not actually convinced that we somehow had a computing society that disappeared and left no trace except for fairytales.