Guess I only read the summary, where they are more guarded.
""Environmental heterogeneity along Eurasia's major corridors of cultural transmission was not significantly lower than observed in other continents. One of the authors, Russell Gray from the Max Planck Institute for Evolutionary Anthropology, summarizes the results by saying, "Our findings point out that geography, like genetics and ecology, matters, but it is not destiny."
Senior author of the study, Carlos Botero from the University of Texas at Austin, concludes with a word of caution, "We do not claim, by any means, to have a definitive answer on whether the wheels of history turned at different speeds in different parts of the world.""
""Environmental heterogeneity along Eurasia's major corridors of cultural transmission was not significantly lower than observed in other continents. One of the authors, Russell Gray from the Max Planck Institute for Evolutionary Anthropology, summarizes the results by saying, "Our findings point out that geography, like genetics and ecology, matters, but it is not destiny."
Senior author of the study, Carlos Botero from the University of Texas at Austin, concludes with a word of caution, "We do not claim, by any means, to have a definitive answer on whether the wheels of history turned at different speeds in different parts of the world.""