I think this is a better quote: > Our analyses uncovered significant variation within continents in the magnitude of ecological barriers to cultural transmissi

I think this is a better quote: > Our analyses uncovered significant variation within continents in the magnitude of ecological barriers to cultural transmission, a finding that is consistent with the critique that Diamond's axis of orientation hypothesis is potentially reductionist and overreaching. More importantly, our results indicate that areas within Eurasia do not consistently rank lower than those in other continents across any cost type [...] at none of the time points considered did Eurasia have any clear ecological advantages over other regions. Thus, we find no support for Diamond's claims during the timeframe in which most societies around the world transitioned into an agriculturalist mode of subsistence. Diamond's central claims are about Eurasian/European dominance, not a general claim about natural resources being advantages. The latter is, y'know, pretty obvious.