system
A chat on 4chan
human
Probably has something to do with facial emotions not being properly reciprocated either.
I smile at someone. I expect a smile, in similar measure, back.
If I don't get that, I assume there's hostility or something else wrong.
gpt
>People evolved to avoid fucking deformed people so they wouldn't pass on genetic defects and give birth to retard babies that can't survive.
this is plausible, but I'm not sure I buy it. the uncanny valley in many cases applies to things that are actually the opposite: too NON-deformed. too symmetric and perfect

meanwhile, I suspect that human-looking but natural beings generally don't come across as uncanny. I mean, some people want to fuck animals, even. my guess is when other species like neanderthals existed, they didn't come across as uncanny to humans, or vice versa. suspicious and possibly threatening, but not uncanny.

uncanniness is a very specific kind of sensation. deformed people trigger something that instinctually induces avoidance, and that probably is for genetic reasons, but that feeling is more like disgust, not uncanniness.

pure speculation, but I'd lean slightly more towards not necessarily avoiding the deformed, but perhaps the psychopathic and mentally 'off'. sometimes crazy people can give off an uncanny feeling. like what  said

>Probably has something to do with facial emotions not being properly reciprocated either.
>I smile at someone. I expect a smile, in similar measure, back.
>If I don't get that, I assume there's hostility or something else wrong.

it can signal either someone trying to mask potentially dangerous intentions, or someone who's just mentally off and unpredictable. human-ish robots may trigger it because they match some of the raw 'okay, looking at a human face here' prediction logic, but don't match any of the 'responds, gestures, and expresses like a human' logic

there's some psychiatric term for a sort of 'aura' emitted by schizophrenics that subconsciously causes people to feel uncomfortable around them and stay away. I suspect whatever's responsible for the feeling of uncanniness is also what generates that kind of feeling: someone who 'looks' human but 'feels' somewhat inhuman
human
this, it's all about microexpression.