What are these women always whining about why is it that all our wives are so selfish? And what's started out as an individual conflict, or a series of individual conflicts, becomes generalized to a whole gender conflict, because that's what humans do. We discriminate against out groups. We attribute negative characteristics to them, and we attribute positive characteristics to our own group. And psychology experiments dating back since the late 19 sixties show that we're really quick to discriminate against out groups, but that those out groups don't have to be a race or a gender. They can be absolutely anything, people with red hats versus blue hats, people labelled group a or group b, people from opposing football teams. And these studies show that this discrimination starts as soon as the groups are defined, and it intensifies when there's competition or conflict that gets involved. And we'll talk about this more in the next episode. In this case, the inn group is men, but also men from the same lineage. And the out group is women, but women from outsider lineages. So there're two orders of discrimination going on. Meanwhile, among the women, you have the same complaints. They get together after work and they complain about the men. They don't have to brest feed they 're not depleting all their energy producing milk, they don't have to give birth. They are so selfish, they don't recognize that we need more brakes, and we need to work less than they do so we can take care of our infants, which are their own children. And gender identification intensifies, and stereotypes proliferate and tensions mount. And one day a man and his wife are arguing and screaming at each other. And the woman hits the man over the head with a metal pot, knocking him out. And all his cousins and brothers and uncles and nephewsw which are his neighbors, hear this, and they rush in to defend him. And they see their relative n floor, and some of them retaliate with force, beating the woman. Now all the women in the village quickly understand that if they get into serious conflict with their husband, that he will be backed up by all the men in the village. At the end of the day, he always has the advantage of force, because his coalition is huge, and she doesn't really have that much of a coalition. And then on another day, there's another conflict between another husband and wife, and the reverse happens a man hits his wife. Now some people will rush to her aid, but not as many. No one knows her that well, and the other women are afraid to rock the boat and take her side, thus incurring the wrath of their husband and of all his cousins and allies. They understand that they re in a weaker bargaining position than the related men who form the cor population of the village, and they won't be as willing to take risks unless they are directly involved, unless passions are extremely inflamed. And if women try to form broad coalitions to counterbalance the natural coalition of all the related men, they'll find that they're having a hard time of it. A lot of the women are afraid to join, or some of the ones who do end up joining are actually snitches who end up reporting their activities to the men, because they know that the men are a more powerful force, and they calculate that it'll be beneficial to them to be in their good graces.