It doesn't matter if stupid people get more children. In just a few generations, we will certainly get designer kids, where the parents mix and match genes. Th

It doesn't matter if stupid people get more children. In just a few generations, we will certainly get designer kids, where the parents mix and match genes. The world will then get really pretty people which are awesome singers -- and intelligent. More seriously: Body sizes were larger during the ice age which tfa talked about (not only for Neanderthals). I'd like to see data for how much that influences brain size?