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Re:Uncanny Valley by anonytrary on Monday November 18, 2019 @10:17PM (#21570378)
> I think somehow our body is pre-wired for some smells.

This is a result of millions of years of biological evolution. Bodies that were "less" wired for certain smells were likely at some sort of disadvantage. After a lot of generational churning, the average body appears to be "prewired" for the most important smells.

> In the same way our body knows "dead person" is a very terrible smell, even if we have never encountered it in our life.

Again, Darwinian evolution can explain this.

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