The Uncanny Valley is a concept in aesthetics and robotics where human-like objects (robots, CGI, dolls) elicit feelings of eeriness or revulsion when they are almost, but not perfectly, human; Japanese roboticist Masahiro Mori proposed this in 1970, showing a graph where affinity rises with human likeness but plunges into the "valley" of creepiness before rising again with true human resemblance, often linked to evolutionary instincts about disease or death.
Humans evolved around other humanoid species such as, Homo erectus, Homo naledi, Homo floresiensis ("Hobbits"), and Homo luzonensis etc.
It is speculated that we evolved the fear of things that look almost humans in order to distinguish between our own species and these relatives.
by Im_yor_boi
1 Comment
Probably because corpses (and sick people) can spread diseases. It’s in our interest to stay away from them.