Traits

In the old days you married whoever was nearby and willing. Today you have a greater chance of marrying someone who shares common traits. I wonder how this selective breeding will shape humans of the future.

We're already seeing this to some degree. Athletes often have parents who are both athletes. And geniuses generally have two parents that were inclined in that direction. IQ and athleticism are two obvious categories, but I wonder what other, less heralded traits will get exaggerated in th...