I don’t know enough about hormonal biology to guess a specific cause(some general factor of neoteny, perhaps??). It’s much easier to infer that it’s likely some third factor than to know exactly what third factor it is. I actually think most of the evidence in this very post supports the 3rd-factor position or is equivocal—testosterone acting as a nootropic is very weird if it makes you dumber, that men and women have equal IQs seems not to be true, the study cited to support a U-shaped relationship seems flimsy, that most of the ostensible damage occurs before adulthood seems in tension with your smarter friends transitioning after high school.
I don’t know enough about hormonal biology to guess a specific cause(some general factor of neoteny, perhaps??). It’s much easier to infer that it’s likely some third factor than to know exactly what third factor it is. I actually think most of the evidence in this very post supports the 3rd-factor position or is equivocal—testosterone acting as a nootropic is very weird if it makes you dumber, that men and women have equal IQs seems not to be true, the study cited to support a U-shaped relationship seems flimsy, that most of the ostensible damage occurs before adulthood seems in tension with your smarter friends transitioning after high school.
They seemed low-T during high school though!
Yeah could be a third factor though. Maybe you are right.