Learn the key ideas of the book by Yuval Noah Harari


Understanding the future by taking a good look at the past

With the arrival of Homo Sapiens 100 thousand years ago, humans put themselves at the top of the food chain: in our minds, uncertainty and worry continue to prevail, exposing us to fear and making our species become destructive and cruel. “Sapiens. A Brief History of Mankind” explains how, by looking at the past, we can try to understand the future, even though, to our biggest question, “what is happiness”, academics and scientists still don’t seem to be able to come up with an answer.

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Many useful tips to:

  • Grasp the important lessons that come from the history of humanity.
  • Find out about the humans of the past to help understand the humans of today.
  • Imagine the characteristics that the humans of tomorrow’s world will have.

The author of the book:

Yuval Noah Harari is an expert in medieval and military history, and in 2002, he was awarded a PhD in History at Jesus College, Oxford University. Since 2012, he has been a member of the Young Israeli Academy of Science, and he currently teaches world History and Macro Historical Processes at the Hebrew University of Jerusalem. He is a two-time winner of the Polonsky Prize for Creativity and Originality, and recipient of the Society for Military History’s Monaco Award for his writing on military history. He has also published several highly successful books.


An enormous family: over time, many species of humans lived on the Earth simultaneously, until the survival of Homo Sapiens

Just six million years ago, a female monkey had two daughters: one became the ancestor of all chimpanzees, and the other the ancestor of all humans.

Homo Sapiens, the species to which all human beings belong today, is just one of the numerous species of man that simultaneously began to populate the Earth two million years ago, first evolving, and then almost all disappearing, at random times and places, to finally become extinct at least 10 thousand years or so ago. So how come Homo Sapiens is the only one left? There are two conflicting theories which are more or less accepted, according to one’s take on the scientific research, and, unfortunately on one’s political tendencies: there is the ‘Interbreeding Theory’, which tells the story of attraction, sex and mingling between Sapiens and the other species inhabiting the territories that they travelled to, and there is the ‘Replacement Theory’, which tells a story of incompatibility, revulsion, and perhaps even genocide.

In any case, all members of the ‘homo’ species had something in common: a big brain, which was heavy and hungry for energy; a skeleton that had to quickly learn to hold a body up and no longer walk on four legs; and fragile offspring that they had to protect and raise within a tribe. But above all, they had a diet based on plants, insects and bone marrow – the last edible tissue left behind by lions, hyenas and jackals.

Just 400 thousand years ago, some species of humans began diligently hunting large animals, and only when Homo Sapiens appeared, around 100 thousand years ago, did man take his place at the top of the food chain. This is the key to understanding the history of human psychology: unlike majestic predators, such as sharks and lions, humans didn’t give the ecosystem time to adapt to their success…and they didn’t even give themselves time to do so. Until very recently, humans had been the scavengers of the savannah, and they were very worried about their position. This is the reason why, still today, Homo Sapiens’ fear of being ousted makes them extremely cruel and dangerous.


The key ideas of "Sapiens"

An enormous family: over time, many species of humans lived on the Earth simultaneously, until the survival of Homo Sapiens
The Cognitive Revolution: the power of imagination was able to unite an entire species enabling flexible collaboration within rapidly growing communities
Evolutionistic psychology: in our heads, we are all still hunter-gatherers
The attack on Australia: man leaves his first indelible mark
The Agricultural Revolution: human attempts to create an easier life brought about unexpected changes and results
Society Life: Forced to bring some order to society’s activities, man had to learn to record numbers and events before the invention of writing
History has a very precise direction: it is aimed at the unification of humanity, and its best weapon is the concept of money
The modern economy: infinite growth and wellbeing for everyone, as long as they continue to produce and to buy
The search for happiness: it is not possible to demonstrate whether modern humans are really happier than hunter gatherers were
Take-home message

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