Eli5: How come we experience the “Uncanny Valley” phenomenon?

Question

Eli5: How come we experience the “Uncanny Valley” phenomenon?

In: 5

Answer 1

We do. We can hypothesize the roots of our behaviors, but it obviously serves some evolutionary purpose since we kept it. Some theories basically attribute it to revulsion from sickness/death – basically signals that the other human is not quite right and could be dangerous/or the conditions could be dangerous.