IQ is a fairly normalized scale based upon average intelligence of people. 120+ is only 2.5% of the population.
We'd die out pretty quickly.
That aside, studies have shown that higher IQ parents tend to raise very slightly higher IQ children. I don't believe this was genetically based but was more a function of how much and the quality of attention the parents were able to provide. More adults around providing stimulation to a child from a young age is legitimately good for the intelligence of that child, both cognitive and social.
IIN that I believe only people with a IQ over 120 should have babies?
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IQ is a fairly normalized scale based upon average intelligence of people. 120+ is only 2.5% of the population.
We'd die out pretty quickly.
That aside, studies have shown that higher IQ parents tend to raise very slightly higher IQ children. I don't believe this was genetically based but was more a function of how much and the quality of attention the parents were able to provide. More adults around providing stimulation to a child from a young age is legitimately good for the intelligence of that child, both cognitive and social.