Men's gender problems cause them a lot of suffering. There is a massive spiking suicide rate in middle age for men and a cultural attitude to male friendship that is destructive.

Women become breadwinners, men become caregivers. That's the birth of intimate marriage.

As you get closer to equality, you get more pornography. True patriarchal societies like Saudi Arabia do not allow pornography because women are not allowed to turn their bodies into a commodity; women are chattel.

In economies in which women work, men and women in relationships make about the same amount of money, or women make more. Women are 40 percent of breadwinners in America, and that number's been rising.

When you ask single men in their 20s, "Do you want children?" they want children more than women do. Again, economics drive this. If you're a 29-year-old woman, having a baby is going to seriously blow up your career. If you're a 29-year-old man, it isn't.

The research points pretty clearly to the rise of companionate marriage, and I just think it's going to keep being popular, for the very simple reason that it's basically the only way to afford a family life in the 21st-century in advanced economies. It's one of the major reasons for the spike in income inequality. Surgeons used to marry their secretaries. Now they marry other surgeons.

You have two things happening: You have the cultural and economic reality of men falling apart and traditional masculinity falling apart.