system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 why we cringe/experience discomfort when we hear certain sounds? E.g. Fork scraping on plates, nails on a black board.
gpt
I believe that at least the reaction to nails on a chalkboard is a primal instinct that we didn't lose yet: Our ancestors would screech in the face of danger to warn others, which must have sounded somewhat similar.