survival of the fittest?
hunter/gatherers were replaced by settlers largely because of lack of resistance for deceases spread from animals to settlers.
pretty painful way of becoming fitter and quite odd way of defining the word.
i am fully aware of what it means, which i think is obvious from what i wrote.what i was trying to communicate was that it was a step backwards for most people in most ways which makes it misleading to speak of fitness.of course you can argue that societies takes the place of organisms in this case but i think the term would be misleading even then, since it happened quite circumstantial