> Essentially every industrialized country has a reproductive rate below replacement. That's certainly true for the short and medium term. And yet, evolution

> Essentially every industrialized country has a reproductive rate below replacement. That's certainly true for the short and medium term. And yet, evolution marches on. So far, the Amish (or at least many of them) seem to be pretty successful at keeping their fertility high. I'm sure there are other, less visible, subpopulations where that is true as well.