Throughout Guns, Germs, and Steel, Jared Diamond emphasizes the idea that advancements made by different human civilizations arose not because of biological or genetic advantages, but as a result of geography and surrounding resources. The author uses this argument in his comparisons between different culture groups' advancements and change over time, whether it be in tools, farming techniques, or disease. Evidence of his deterministic view is shown when he contrasts the growth of peoples in Europe and in Africa, stating "In short, Europe’s colonization of Africa had nothing to do with differences between European and African peoples themselves, as white racists assume. Rather, it was due to accidents of geography and biogeography—in particular, to the continents’ different areas, axes, and suites of wild plant and animal species. That is, the different historical trajectories of Africa and Europe stem ultimately from differences in real estate." (401).
Diamond not only exemplifies the ways a population's geography has encouraged these advancements, he also illustrates the way various groups show continuities in intelligence and problem solving capability, arguing that these abilities were simply used in different ways depending on the group's location. This viewpoint is clearly seen when Diamond states, "Eurasia's considerable initial advantage thereby was translated into a huge lead as of A.D. 1492-for reasons of Eurasia's distinctive geography rather than of distinctive human intellect." (264). It’s clear that Diamond is a geographical determinist and he is guilty as charged.