Further to this, there is partner selection either directly, or establishing social networks that lead to partner selection. Getting a bunch of young people to

Further to this, there is partner selection either directly, or establishing social networks that lead to partner selection. Getting a bunch of young people together who pass some threshold for (generally) favourable behavioural and cognitive traits sounds like Huxley's A Brave New World, but this is essentially what University is. Maybe it is net negative for the progress of human civillisation (eg unhappy children of high stress/achieving/spoiling parents, echo chamber conformism, capture of high potential individuals into high status low potential jobs). But it is also plausible that this kind of partner selection leads to outlier intelligence in offspring, compared to selecting partners randomly or from geographic/social pools unenriched for achievement.