> Eh you could be right about the explanation OF the dichotomy

To be clear, that's what I'm questioning, the idea that the West was based on hunting/gathering vs. agriculture in the East. Agriculture was the base of all settled populations worldwide, with very few (and relatively small) exceptions.

> but THAT the dichotomy exists is an empirical question and had already been answered by decades of (cross-cultural psychology) research

Interesting; that does not match my experience of American and Chinese cultures. What would you say is the best empirical evidence supporting the idea of a simple competitive-West/cooperative-East dichotomy?

Anecdotally, I'm reasonably familiar with Chinese and American cultures, and that simplistic dichotomy does not fit what I have observed. Competition is brutal right now for Chinese parents and their kids, and also in many other ways (for people seeking spouses, for top university spots, for desirable apartments, etc.). Chinese families in the USA are markedly more competitive than their white peers; witness the "Tiger Mom" stereotype. In many ways, this competition has deep cultural roots, notably including the imperial examinations needed to become a civil servant which date back centuries.

My understanding is that there's more evidence for a consistent difference in individualism vs. collectivism, but (a) that's a different thing than competition vs. cooperation, and (b) that's in large part due to many of the comparisons being made against the USA, which itself stands out as unusually individualistic even compared to its Western peers.