A very detailed summary of the book Sapiens, by Yuval Noah Harari. Around 70,000 years ago, homo sapiens developed superior cognitive functions and wiped out other human species. Harari then describes our species’ changes throughout the Agricultural Revolution (around 12,000 years ago) and Scientific Revolution (500 years ago). He finishes by looking into the future, which may soon see the end of Sapiens as we know it.
There are many criticisms of Guns, Germs and Steel. This summary outlines, in hopefully a fair and balanced way, the key criticisms and responses to it.