Factories not what they used to be - they're all extremely high-tech.

It's a fact that within the space of a few decades, women have achieved a massive shift in the role they play - in the way they act in public, and in the way they have conquered areas of the working world that were until recently considered a man's domain.

When women gain access to higher education and then suddenly start doing better at it than the men, that can really throw the prevailing social order out of balance. That's exactly what's happened in South Korea, which is a highly patriarchal society. They started educating women, and then they were no longer the women that society wants them to be. That caused a real cultural crisis.

Men aren't able to find jobs anymore, and they're withdrawing from society, essentially creating a matriarchy. For the upper social classes, marriage is still a successful model, but for poorer people it's not.

In American fertility clinics, 75 percent of couples are requesting girls and not boys.

Fixing things around the house was the last bastion of manliness. But now, even that is getting taken away. As women become more economically independent, they are starting to fix things around the house for themselves.

If men can quilt and take over the kitchen, then women can pick up a wrench and fix a leaky pipe.