... given that almost all skills (hunting and archery possibly being exceptions) are so new in evolutionary time scale that there could not possibly

... given that almost all skills (hunting and archery possibly being exceptions) are so new in evolutionary time scale that there could not possibly have been any selection for them ... Couldn't you turn that evolutionary argument around, and say that exactly because there hasn't been any selection until recently, you'd expect a larger population variance in those innate talents?