Great lecture by geneticist Steve Jones arguing evolution as we know it has essentially stopped in modern humans because of massive declines in natural selection, sexual selection, and genetic drift.
Declining natural selection
Today any fool can survive to reproductive age so natural selection is essentially over.
Declining sexual selection
In the past some surviving men would father orders of magnitude more babies than others, but today the range is much more restricted.
Declining genetic drift
Our population has become so big that it’s hard for any population to become genetically isolated enough to mutate a new morphology.