The Evolution of Sexual Selection

The phenomenon of sexual selection is a very interesting parallel with that which is whereby you get things like peacocks, tales and nightingale songs. The best explanation we have for that is that for some purely arbitrary reason females have started to choose the male with the longest tail. Once they start doing that then any female who doesn't follow the fashion is going to have sons who don't attract any mates. So in order to have sexy sons you've got to follow the fashion. It's not sexual selection in the biological sense but it's similar kinds of fashion following in human beings. Do we spot that following the fashion can result in cultural outcomes that are popular with other people? Oh yes we