The thesis was that people settled because it was superior in terms of supplying the population back then. All i was saying is that at the time that mustnt have been the case. It was more effective in the capitlaist/imperialist/expansionist mindset that is fucking is over now.
Of course with the current 8 billion people living on earth a nomadic lifestyle is not viable. But that is a very different question from the question if it was viable 10.000 years ago, when there were maybe a few hundred thousand to a few million humans on earthin total.