Deleted member 275
Kraken
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Enforced monogamy and harsher life circumstances made intelligence more important for the survival of offspring in the past. Right now you can be a 70IQ loser in the western world and face no consequences for your low IQ behavior. No money to raise your offspring? The state will pay. Too stupid to teach your kids anything useful? Public schools. Did something stupid and risky damaging your physical health? hello publicly funded health-care. Etc.I know that, but sexual selection I believe is the stronger of the two outside of mass extinction events. and I dont know what survival advantages certain unique traits humans have like the ability to make art and music
On top of that I would argue most of the IQ gains of humanity has come through forcing kids to go to school for the first 18 years of their life. illiteracy used to be very common in the past and it didn't stop people from reproducing.