A lot of negative-sum selection for height perhaps. The genetic architecture is already known well enough for major embryo selection, and the rest is coming quickly.
Height’s contribution to CEO status is perhaps half of IQ’s, and in addition to substantial effects on income it is also very helpful in the marriage market for men.
But many of the benefits are likely positional, reflecting the social status gains of being taller than others in one’s social environment, and there are physiological costs (as well as use of selective power that could be used on health, cognition, and other less positional goods).
Choices at actual sperm banks suggests parents would use a mix that placed serious non-exclusive weight on each of height, attractiveness, health, education/intelligence, and anything contributing to professional success. Selection on personality might be for traits that improve individual success or for compatibility with parents, but I’m not sure about the net.
Selection for similarity on political and religious orientation might come into use, and could have disturbing and important consequences.
A lot of negative-sum selection for height perhaps. The genetic architecture is already known well enough for major embryo selection, and the rest is coming quickly.
Height’s contribution to CEO status is perhaps half of IQ’s, and in addition to substantial effects on income it is also very helpful in the marriage market for men.
But many of the benefits are likely positional, reflecting the social status gains of being taller than others in one’s social environment, and there are physiological costs (as well as use of selective power that could be used on health, cognition, and other less positional goods).
Choices at actual sperm banks suggests parents would use a mix that placed serious non-exclusive weight on each of height, attractiveness, health, education/intelligence, and anything contributing to professional success. Selection on personality might be for traits that improve individual success or for compatibility with parents, but I’m not sure about the net.
Selection for similarity on political and religious orientation might come into use, and could have disturbing and important consequences.