[eltoxo]

I thought the article seemed pretty bad so tried to read the actual paper too.

It really might be one of the worst papers I have read. It is basically a magazine article using more scientific sounding language.

There is a huge age/experience confound that I can think of from my own life. My answers would be so much different at 25 vs 55 after so many failed attempts at pair bonding. From my dating experience and life I would say the time average and ensemble average are not equal. Even forgetting about experience we know hormone levels change drastically over time. I can think of all kinds of ridiculous experiments in other domains that would be analogous to studying sex without accounting for sex hormones.