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Homo Deus: A History of Tomorrow

Yuval Noah Harari

Start date: June 1, 2018

Finish date: June 30, 2018

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Book Club 2018

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Aug 28, 2016 David Rubenstein rated it it was amazing · review of another edition

Shelves: nonfiction, history, politics, religion, computers, philosophy, ethics, psychology

This is a powerful book by a truly insightful author. I recently read Harari's previous great book, Sapiens: A Brief History of Humankind, and I enjoyed this one just as much. There is so much packed into Homo Deus: A Brief History of Tomorrow, that it is hard to do justice to the book in a review. Yuval Harari has such a unique insight into how the world turns. He is sometimes very blunt, but he "tells it like he sees it." The first two-thirds of the book is devoted to a description of how the This is a powerful book by a truly insightful author. I recently read Harari's previous great book, Sapiens: A Brief History of Humankind, and I enjoyed this one just as much. There is so much packed into Homo Deus: A Brief History of Tomorrow, that it is hard to do justice to the book in a review. Yuval Harari has such a unique insight into how the world turns. He is sometimes very blunt, but he "tells it like he sees it." The first two-thirds of the book is devoted to a description of how the humanist philosophy developed, while the last third is about how humanism may very well fall to the wayside in the not-too-distant future.

In the beginning of the book, Harari describes two new human agendas. The first is how humans attempt to extend their lifetimes, and the second is to increase happiness. The goal is to upgrade homo sapiens into homo deus. That is, the desire to re-engineer our bodies and minds, escape old age, death and misery. Basically, to attain divinity. Harari gives numerous examples of how were technologies developed to aid ill or handicapped people, and then were borrowed to help "normal" healthy people; prosthetics, bionics, Viagra, memory aid drugs, plastic surgery, and genetic engineering. (In 2000, a baby girl was born with genetic inheritance from three parents; nuclear genes from mother and father, and mitochondrial DNA from another woman! A year later, the U.S. government banned this special treatment, but the U.K. has since approved it.)

Harari contends that historians study the past, not in order to repeat it, or to foretell the future, but to be liberated from it. He gives a marvelous example of the history of the grass lawn. He writes that the best reason to study history is not to predict the future, but to "free yourself of the past and imagine alternative destinies."

Harari has some interesting insights into the founding of modern religions. He writes that they were founded when humans switched from hunting/foraging to agriculture. A central point of the religions was to give humans dominion over all animals, in order to justify their domestication and superiority, and to justify the terrible suffering humans cause for animals. The agricultural revolution was both an economic and a religious revolution, used to justify brutal exploitation of animals. Agricultural societies also started treating some classes of people as property. I wonder, though, didn't pre-agricultural societies practice slavery? When I try to do some simple online research in this subject, it seems like Harari might be correct; slavery was established to mimic the domestication of animals. And, the agricultural revolution was bad for humans in other ways, as well. A peasant in 1850 in China or Britain had a worse life than an archaic hunter-gatherer, from the point of view of diet and hygiene.

Harari has some unique insights into the dichotomy between religion and science. He describes science as a new "religion" that replaced theist religions with humanist religions, replacing gods with humans. The hatred of monotheists for the theory of evolution is inspired by the lack of scientific evidence for a human soul. A soul has no parts, and evolution operates through incremental changes to various parts of a whole. But, both religion and science, in theory at least, are both devoted to the truth. But since their truths are different they seem doomed to clash. However, since neither religion nor science really care much about truth, they can coexist. Religion is mostly interested in social order and structure, while science is mostly interested in power. That is, the power to cure disease, fight war and produce food. So, since religion and science prefer order and power over truth, they "make good bedfellows."

Modernity is a simple deal based on a contract: Humans agree to give up meaning in exchange for power. Plagues, droughts and wars have no cosmic meaning to modern humanism, but we have the power to eradicate them. Paradise does not await us after death, but we have the power, in principle, to create paradise here on Earth. Modernity is based on the belief that growth is essential. Growth is the supreme value. Because avarice and greed help to fuel growth, they are encouraged.

Traditional religions offer no alternative to liberalism because they are reactive instead of creative. This wasn't always true. During the Middle Ages, Christian monasteries were among the most advanced centers for innovations--Harari lists a number of their innovations. But today religions look to scriptures for answer. But scriptures are no longer a source of creativity, as they say nothing about modern technologies such as genetic engineering or artificial intelligence. Harari describes three different possible futures for humanism. In one of these, liberalism may die out as technology displaces humans. The masses will lose their economic and military importance. Harari suggests that "Dataism" may appear as a new religion. Dataism advances the first truly new value in nearly 200 years; the value of freedom of information. Dataism is firmly entrenched in its two mother disciplines, computer science and biology. Organisms are seen by scientists as data-processing systems. The stock market is the most powerful of all data processing systems, and centralized government is one of the worst. Capitalism defeated Communism during the Cold War, not because it is more ethical or because individual liberties are sacred, but because in times of rapid technological change, distributed processing systems work better than centralized systems.

Humanists rely on feelings to make important decisions, and these feelings evolved over millions of years. But often our feelings are just irrational and wrong. Computer algorithms can surpass feelings in making good decisions. So, the humanist recommendation to "get in touch with your feelings" may not he given in the future. Perhaps, meaning in life will not lie in our experiences, until they are shared with others, through social media. And, these social media will analyze our experiences, and be able to give expert advice on important decisions. Harari gives some pretty good evidence that this trend may come to pass.

I do want to quibble with some numbers that Harari proposes. He writes that the one billion cars owned around the world could be reduced to 50 million, if they were jointly owned and operated autonomously. People could share rides. However, people want to commute to work in cars all at the same time. They sit in parking lots at work and at home because people have no need for them during work hours and overnight.

But this is perhaps a minor point in Harari's argument. Many people will pooh-pooh much of what Harari has to say. But, it is all extremely thought-provoking. I have just scratched the surface of this book. I highly recommend it to all open-minded people who are not afraid to think a bit differently about the meaning of life, about our political structures, and the future. ...more

166 likes · Like · see review

Apr 05, 2018 Casey rated it did not like it

This may have been the worst work of purported nonfiction I have ever read. I actually described this book to a colleague by comparing it to a conversation between a group of smart people who each just took a large bump of cocaine. It’s impassioned, but rambling, filled with speculation but lacking any coherent argument. In short, it’s a mess.

Generally, I dislike appeals to authority, but I feel I should preface this by saying that I am an expert in cognitive science, and I’ve been working with ...more

33 likes · Like · see review

Nov 28, 2017 Jim rated it it was amazing · review of another edition

Shelves: science, favorites, 1audio, 2non-fiction, historical

Harari picks up where he left off with Sapiens: A Brief History of Humankind, a fantastic book that I gave a 5 star review HERE. There he shows where we've been & spends the last chapters asking where are we going. He also asks what is happiness? Both are important questions that he starts off addressing here with The New Human Agenda, an interesting & long introduction that covers a lot of thoughtful territory to set the stage for the 3 parts of the book.

His examples are great since they take m ...more

30 likes · Like · see review

Aug 27, 2016 Manjunath marked it as to-read

Dec 17, 2016 Edina marked it as to-read

Feb 09, 2017 Amy marked it as to-read-nonfiction

Mar 23, 2017 Zac marked it as unread

Shelves: 1-my-books, 1-my-kindle, science, non-fiction, history, philosophy, anthropology, 2-must-read-non-fiction, technology, 3-must-read-kindle-non-fiction