Is Human Evolution Over?

Many people – Darwin included – have claimed that the human species will continue to evolve in the future, as it has in the past. That notion gave impetus to the eugenics movement, and to much of modern science fiction. I will argue that, given what we know about the Darwinian processes of natural selection and random change in our own species, that adaptive evolution is – for the time being, and at least in the developed world – more or less over.