iam pretty sure that you can teach a machine better than a human. Just think about the network and the fast recognition time. As well it will never miss something nor it will remember something wrong or only detail of it.
One of the key arguments of this thesis is that we are too sepcialist in what we are doing. We are not all-rounder anymore.
That makes us week. A robot or computer could replace us because the tasked would be simple instead of doing several different things.