"We’ve invented...effective polygamy without children. High-status men cycle through partners, but nobody reproduces. Why? Because reproduction requires the lock-in that marriage provides. Serial dating offers men all the benefits of access with none of the costs of commitment. And women, waiting for commitment from men who have no incentive to provide it, delay childbearing until it’s too late.

--Josh Konstantinos on what he calls “Sterile Polygamy.”