I am going to skip the counting part since I think it is borderline pedantic and doesn't lead anywhere. Defining what a culture is, or how you differentiate the

I am going to skip the counting part since I think it is borderline pedantic and doesn't lead anywhere. Defining what a culture is, or how you differentiate them is not on the scope of my comment, and the argument was not about cultures specifically. I don't need an historical example, since I am not arguing that this has always been the case, nor that it isn't a cultural change. Going a bit further on my previous comment, and trying to clarify, I think this behavior emerges precisely because of a general stabilization/stagnation of a given population (of traits, languages, behaviors, animal species etc.) in order to avoid over-fitting (the "won" part, if I did not express myself clearly enough) and to preserve diversity. The original comment is just that, a comment. A thought that I think holds some value and is related to the article. I am not trying to convince anyone that this is a defined mechanism by which nature rules and defines itself.