In that sense, the guns, germs and steel culminate in the great showdown of the Columbian Exchange; afterwards, worldwide transportation of people, goods, ideas, and (of course) germs tends to nullify the geographical-induced effects that Diamond expands upon.
I have recently been studying Francisco Pizarro and his domination over the Incas. I watched a clip called "Guns, Germs, and Steel". It was quite interesting, how Pizarro dominated the Incas with o...
Guns, Germs, and Steel presents a very important argument that geography plays a critical role in the course of human social and economic development. To the extent that geography is important, it excludes alternate explanations that may be religious, racist, or nihilistic.
Is there evidence in Jared Diamond's Guns, Germs, and Steel that ...
You might want to read Chapter 8: Apples or Indians in the book Guns, Germs, and Steel. That chapter essentially claims that those staple crops provide relatively high nutrition relative to their ease of cultivation, rate of growth, resources required, and yield.
3 In chapter 6 of Guns, Germs, and Steel, "To Farm or Not to Farm" (p. 111), Jared Diamond says that primitive harvesting tools like flint blades and grinding slabs were prerequisites to the planting of cereals as crops. These cumulative developments constituted the unconscious first steps of plant domestication.
This is one of those questions we've jokingly considered making an "Explained in Guns, Germs, and Steel " close reason for. :-)
Definitely second Guns Germs and Steel, but keep in mind the author tends to present his explanations as universally applicable, even when there are edge cases that contradict it somewhat. For example, if you insist on discounting culture and putting all the blame and credit on local resource availability, Japan's relative success is hard to explain.