The cognitive revolution as described by Harari is a development of the ability to use thought to further our cause. The cognitive revolution was a development of language and the ability to gossip and make up stories. Through shared stories, modern humans form shared ideologies which cause them to feel an intimate connection to a population much larger than any other animal. This allowed sapiens the ability to dominate other species by use of large group cooperation. The agricultural revolution was a shift from hunter/gatherer societies to societies that domesticated animals and plants and raised them. The agricultural revolution allowed for population growth to happen beyond the natural ability of the land to sustain the population.
Harari claims that homo sapiens became dominant because of their ability to form communal belief systems or imagined orders. He says, “an imagined reality is something that everyone believes in, and as long as this communal belief persists, the imagined reality exerts force in the world.” (pg. 35) I find his arguments persuasive because he presents it with authority and I’m not used to questioning things like that. In the world I grew up in, if a history teacher told you to read a book for class, it was obviously the truth and there would be no reason to question the persuasiveness of the arguments. If you think about it, this is another of those imagined realities that he is talking about. There is an accepted order in our society that we will go to school to be taught, so we don’t always think to question the “facts” as they are presented to us. So basically, I agree with him that the social constructs of society lend credibility to the argument that it’s what makes homo sapiens different.