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Homo Deus: A Brief History of Tomorrow Hardcover – Illustrated, February 21, 2017

4.5 4.5 out of 5 stars 36,396 ratings

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Official U.S. edition with full color illustrations throughout.

NEW YORK TIMES BESTSELLER

Yuval Noah Harari, author of the critically-acclaimed New York Times bestseller and international phenomenon Sapiens, returns with an equally original, compelling, and provocative book, turning his focus toward humanity’s future, and our quest to upgrade humans into gods.

Over the past century humankind has managed to do the impossible and rein in famine, plague, and war. This may seem hard to accept, but, as Harari explains in his trademark style—thorough, yet riveting—famine, plague and war have been transformed from incomprehensible and uncontrollable forces of nature into manageable challenges. For the first time ever, more people die from eating too much than from eating too little; more people die from old age than from infectious diseases; and more people commit suicide than are killed by soldiers, terrorists and criminals put together. The average American is a thousand times more likely to die from binging at McDonalds than from being blown up by Al Qaeda.

What then will replace famine, plague, and war at the top of the human agenda? As the self-made gods of planet earth, what destinies will we set ourselves, and which quests will we undertake? Homo Deus explores the projects, dreams and nightmares that will shape the twenty-first century—from overcoming death to creating artificial life. It asks the fundamental questions: Where do we go from here? And how will we protect this fragile world from our own destructive powers? This is the next stage of evolution. This is Homo Deus.

With the same insight and clarity that made Sapiens an international hit and a New York Times bestseller, Harari maps out our future.


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Editorial Reviews

Amazon.com Review

An Amazon Best Book of February 2017: Those who read and loved Yuval Noah Harari’s Sapiens have been eagerly anticipating his new book Homo Deus. While Sapiens looked back at our evolutionary development, this new book examines where we might be headed (Homo Deus is subtitled “A Brief History of Tomorrow”). Predicting the future isn’t as easy as deconstructing the past, and Harari openly admits the challenge—but even if he’s completely wrong in his predictions, and most of us doubt he is, Homo Deus is the kind of provocative, food-for-thought read that drew so many of us to his work in the first place. According to Harari, our future could be very different from our present—dark, technocratic, and automated—but reading about our possible fates, presented in Harari’s clear-eyed and illuminating style, sure is fascinating. --Chris Schluep, The Amazon Book Review

Review

Homo Deus will shock you. It will entertain you. Above all, it will make you think in ways you had not thought before.” — Daniel Kahneman, author of Thinking Fast, and Slow

“Thrilling to watch such a talented author trample so freely across so many disciplines... Harari’s skill lies in the way he tilts the prism in all these fields and looks at the world in different ways, providing fresh angles on what we thought we knew... scintillating.” — Financial Times

“Spellbinding… This is a very intelligent book, full of sharp insights and mordant wit... It is a quirky and cool book, with a sliver of ice at its heart... It is hard to imagine anyone could read this book without getting an occasional, vertiginous thrill.” — Guardian

“Harari is an intellectual magpie who has plucked theories and data from many disciplines - including philosophy, theology, computer science and biology - to produce a brilliantly original, thought-provoking and important study of where mankind is heading.” — Evening Standard (London)

“I enjoyed reading about these topics not from another futurist but from a historian, contextualizing our current ways of thinking amid humanity’s long march–especially…with Harari’s ability to capsulize big ideas memorably and mingle them with a light, dry humor…Harari offers not just history lessons but a meta-history lesson.” — Washington Post

“What elevates Harari above many chroniclers of our age is his exceptional clarity and focus.” — London Sunday Times

“A remarkable book, full of insights and thoughtful reinterpretations of what we thought we knew about ourselves and our history.” — The Guardian

“Provocative...the handiwork of a gifted thinker.” — Jennifer Senior, New York Times

“[A] great book…not only alters the way you see the world after you’ve read it, it also casts the past in a different light. In Homo Deus, Yuval Noah Harari shows us where mankind is headed in an absolutely clear-sighted & accessible manner.” — Mail on Sunday

“Like all great epics, Sapiens demanded a sequel. Homo Deus, in which that likely apocalyptic future is imagined in spooling detail, is that book. It is a highly seductive scenario planner for the numerous ways in which we might overreach ourselves.” — The Observer (London)

“Thank God someone finally wrote [this] exact book.” — Sebastian Junger, New York Times Book Review

“Harari is an exceptional writer, who seems to have been specially chosen by the muses as a conduit for the zeitgeist… Fascinating reading.” — Times Literary Supplement (London)

Sapiens takes readers on a sweeping tour of the history of our species…. Harari’s formidable intellect sheds light on the biggest breakthroughs in the human story…important reading for serious-minded, self-reflective sapiens.” — Washington Post

“Sapiens tackles the biggest questions of history and of the modern world, and it is written in unforgettably vivid language.” — Jared Diamond, Pulitzer Prize-winning author of Guns, Germs, and Steel, Collapse, and The World until Yesterday

“In Sapiens, Harari delves deep into our history as a species to help us understand who we are and what made us this way. An engrossing read.” — Dan Ariely, New York Times Bestselling author of Predictably Irrational, The Upside of Irrationality, and The Honest Truth About Dishonesty

“Provocative… essential reading.” — New York Times Book Review

“Thought-provoking and enlightening, Harari’s books is a must-read for anyone interested in the future of our species.” — BookPage

“…[S]hares DNA with the work of writers like Jared Diamond … while drawing freely from other disciplines in both the humanities and sciences. It’s emphatically a work for the general reader eager to grapple with big ideas, but who is equally hungry for context for today’s headlines.” — Shelf Awareness

Product details

  • Publisher ‏ : ‎ Harper; Illustrated edition (February 21, 2017)
  • Language ‏ : ‎ English
  • Hardcover ‏ : ‎ 464 pages
  • ISBN-10 ‏ : ‎ 0062464310
  • ISBN-13 ‏ : ‎ 978-0062464316
  • Item Weight ‏ : ‎ 2.46 pounds
  • Dimensions ‏ : ‎ 6 x 1.37 x 9 inches
  • Customer Reviews:
    4.5 4.5 out of 5 stars 36,396 ratings

About the author

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Yuval Noah Harari
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Prof. Yuval Noah Harari (born 1976) is a historian, philosopher and the bestselling author of 'Sapiens: A Brief History of Humankind' (2014); 'Homo Deus: A Brief History of Tomorrow' (2016); '21 Lessons for the 21st Century' (2018); the children's series 'Unstoppable Us' (launched in 2022); and 'Nexus: A Brief History of Information Networks from the Stone Age to AI' (2024). He is also the creator and co-writer of 'Sapiens: A Graphic History': a radical adaptation of 'Sapiens' into a graphic novel series (launched in 2020), which he published together with comics artists David Vandermeulen (co-writer) and Daniel Casanave (illustrator). These books have been translated into 65 languages, with 45 million copies sold, and have been recommended by Barack Obama, Bill Gates, Natalie Portman, Janelle Monáe, Chris Evans and many others. Harari has a PhD in History from the University of Oxford, is a Lecturer at the Hebrew University of Jerusalem's History department, and is a Distinguished Research Fellow at the University of Cambridge’s Centre for the Study of Existential Risk. Together with his husband, Itzik Yahav, Yuval Noah Harari is the co-founder of Sapienship: a social impact company that advocates for global collaboration, with projects in the realm of education and storytelling.

Customer reviews

4.5 out of 5 stars
36,396 global ratings

Customers say

Customers find the book thought-provoking, fascinating, and clear-headed. They describe it as a good, entertaining read that adds significantly to their world perspective. However, some find the length too long and dense. Opinions are mixed on the writing quality, with some finding it well-written and easy to understand, while others say it's confusing and poorly developed. Readers also disagree on the pacing, with some finding it quick and timely, while others say it is slow.

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733 customers mention "Thought provoking"660 positive73 negative

Customers find the book thought-provoking, fascinating, and full of fascinating ideas. They appreciate the provocative questions it asks and the overall thesis is coherent. Readers also mention that the book is engaging and insightful, with valuable insights about the history and development of Homo sapiens.

"...manner I think the reader can see how beautifully Harari writes and how deep and original a thinker he is.“..." Read more

"...I am about to start reading his other book. He is very thorough in his presentations." Read more

"Interesting and enlightening in parts but other parts, such as his discussion of consciousness, are overthought and ultimately gibberish...." Read more

"This is the most challenging book I’ve read since – well perhaps ever, not because the author’s style is in any way difficult but because it..." Read more

540 customers mention "Readability"540 positive0 negative

Customers find the book mind-blowing, compelling, and entertaining. They say it's one of the best books of history they've read in recent years. Readers also mention the author is excellent and the book is exciting to read.

"...But no matter. This is another brilliant book by the very learned and articulate Professor Harari...." Read more

"This was a really interesting read. I read his other book, Homo Sapiens, and it was great too. I am about to start reading his other book...." Read more

"...This book is a good start along with Code Breaker and American Prometheus, but there is still a lot to consider missing here." Read more

"...This is an exceptional book. If you are drawn to big-picture views of humans and our place in the world, this book is valuable...." Read more

19 customers mention "Perspective"19 positive0 negative

Customers find the perspective of the book eye-opening, engrossing, and insightful. They say it makes them reflect in a deeper way and ponder what lies ahead of them. Readers also mention the author has the gift of seeing the big picture and extrapolating possible futures.

"...Harari has a gift of seeing the big picture, and extrapolates possible futures with compelling logic...." Read more

"...Indeed the book does an excellent job in rising our awareness to where we might be heading as a collective." Read more

"This book changes your view of the world...." Read more

"...He is a very smart man, smarter than me. Reading his books makes me feel enlightened." Read more

19 customers mention "Value for money"14 positive5 negative

Customers find the book well worth the price and a masterpiece for lovers of technology, anthropology, and philosophy. They also say it's a perfect transaction.

"...an accessible style - one cannot praise it high enough for its mind-opening value...." Read more

"...The company has also been a great positive in saving money and more importantly in saving time as I shopped for the products of daily life...." Read more

"...this new book contains little of interest and a great deal that is disappointing...." Read more

"perfect transaction" Read more

18 customers mention "Humor"13 positive5 negative

Customers find the humor in the book amusing, clear, and concise. They also appreciate the entertaining examples and anecdotes recounted with dry humour.

"...in his previous book "Sapiens": clever, clear and humorous writing, intelligent analogies and a remarkable sweep through human history,..." Read more

"...thesis is coherent given his assumptions and gracefully presented with considerable humor, so four stars, even if it is more than a bit presumptuous!" Read more

"...It’s an awkward combination of colloquial and academic verbiage that can only be described as a literary identity crisis...." Read more

"...He is so full of insights, humor and a deep understanding as he explains how our world of ideas and politics, science and religion, evolution,..." Read more

294 customers mention "Writing quality"204 positive90 negative

Customers have mixed opinions about the writing quality of the book. Some mention it's well-written, easy to read and understand, and thought-provoking. Others say it's not an easy read, with confusing and less well-developed ideas.

"...This is another brilliant book by the very learned and articulate Professor Harari. It should be emphasized that Harari is by profession a historian...." Read more

"...To me his writing is always carefully and reasonably articulated and he states plainly when and where he is speculating...." Read more

"...From his basic premises, Harari’s logic is injured...." Read more

"...On the positive side, Mr. Harari brings the same colorful and thought-provoking writing and broad grasp of humanity, both ancient and contemporary,..." Read more

38 customers mention "Pacing"23 positive15 negative

Customers have mixed opinions about the pacing of the book. Some mention it's presented in a quick-paced, lucid narrative. However, others say it's sometimes slow and shallow.

"...on where humanity has been and where it is going which is presented in a quick-paced, lucid narrative...." Read more

"...I thought the book had a really slow start, not much new. As it progressed however, it posed scenarios I hadn’t really thought of before...." Read more

"...The ideas and thoughts come at you quickly and non-stop. This is one of my favorite books now...." Read more

"I read this extraordinary thoughtful chew in preparation for the new year 2019...." Read more

21 customers mention "Length"0 positive21 negative

Customers find the book too long and dense. They say it's a hard read and is wordy. Readers also mention the pages are not easy to follow and get rambling in some sections.

"...For those who are not well versed in biology, these pages are not easy to follow and are somewhat boring...." Read more

"...It is well written, easy to read and understand. The chapters are a bit long, but the story does pull you in and keep you interested...." Read more

"...However, it tends to get rambling in some sections, sometimes repeating points already made clear in previous chapters." Read more

"...The book is long and at times difficult to get through in terms of the depth of research the author uses to validate his thesis...." Read more

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Top reviews from the United States

Reviewed in the United States on July 10, 2017
Most of this is not about “tomorrow” but about yesterday and today. Most of the material that pertains most directly to the future begins with Chapter 8 which is two-thirds of the way into the book. But no matter. This is another brilliant book by the very learned and articulate Professor Harari. It should be emphasized that Harari is by profession a historian. It is remarkable that he can also be not only a futurist but a pre-historian as well as evidenced by his previous book, “Sapiens.”

This quote from page 15 may serve as a point of departure: “Previously the main sources of wealth were material assets such as gold mines, wheat fields and oil fields. Today the main source of wealth is knowledge.” (p. 15)

In the latter part of the book Harari defines this knowledge more precisely as algorithms. We and all the plants in the ground and all fish in the sea are biological algorithms. There is no “self,” no free will, no individuals (he says we are “dividuals”) no God in the sky, and by the way, humans as presently constituted are toast.

The interesting thing about all this from my point of view is that I agree almost completely. I came to pretty much the same conclusions in my book, “The World Is Not as We Think It Is” several years ago.

What I want to do in this review is present a number of quotes from the book and make brief comments on them, or just let them speak for themselves. In this manner I think the reader can see how beautifully Harari writes and how deep and original a thinker he is.

“Islamic fundamentalists could never have toppled Saddam Hussein by themselves. Instead they enraged the USA by the 9/11 attacks, and the USA destroyed the Middle Eastern china shop for them. Now they flourish in the wreckage.” (p. 19) Notice “fundamentalists” instead of “terrorists.” This is correct because ISIS, et al., have been financed by Muslim fundamentalists in places like Saudi Arabia.

“You want to know how super-intelligent cyborgs might treat ordinary flesh-and-blood humans? Better start by investigating how humans treat their less intelligent animal cousins.” (p. 67)

Harari speaks of a “web of meaning” and posits, “To study history means to watch the spinning and unravelling of these webs, and to realise that what seems to people in one age the most important thing in life becomes utterly meaningless to their descendants.” (p. 147)

One of the themes begun in “Sapiens” and continued here is the idea that say 20,000 years ago humans were not only better off than they were in say 1850, but smarter than they are today. (See e.g., page 176 and also page 326 where Harari writes that it would be “immensely difficult to design a robotic hunter-gatherer” because of the great many skills that would have to be learned.) In “The World Is Not as We Think It Is” I express it like this: wild animals are smarter than domesticated animals; humans have domesticated themselves.

For Harari Nazism, Communism, “liberalism” humanism, etc. are religions. I put “liberalism” in quotes because Harari uses the term in a historical sense not as the opposite of conservatism in the contemporary parlance.

“For religions, spirituality is a dangerous threat.” (p. 186) I would add that religions are primarily social and political organizations.

“If I invest $100 million searching for oil in Alaska and I find it, then I now have more oil, but my grandchildren will have less of it. In contrast, if I invest $100 million researching solar energy, and I find a new and more efficient way of harnessing it, then both I and my grandchildren will have more energy.” (p. 213)

“The greatest scientific discovery was the discovery of ignorance.” (p. 213)

On global warming: “Even if bad comes to worse and science cannot hold off the deluge, engineers could still build a hi-tech Noah’s Ark for the upper caste, while leaving billions of others to drown….” (p. 217)

“More than a century after Nietzsche pronounced Him dead, God seems to be making a comeback. But this is a mirage. God is dead—it’s just taking a while to get rid of the body.” (p. 270)

“…desires are nothing but a pattern of firing neurons.” (p. 289)

Harari notes that a cyber-attack might shut down the US power grid, cause industrial accidents, etc., but also “wipe out financial records so that trillions of dollars simply vanish without a trace and nobody knows who owns what.” (p. 312) Now THAT ought to scare the bejesus out of certain members of the one percent!

On the nature of unconscious cyber beings, Harari asserts that for armies and corporations “intelligence is mandatory but consciousness is optional.” (p. 314) This seems obvious but I would like to point out that what “consciousness” is is unclear and poorly defined.

While acknowledging that we’re not there yet, Harari thinks it’s possible that future fMRI machines could function as “almost infallible truth machines.” Add this to all the knowledge that Facebook and Google have on each of us and you might get a brainstorm: totalitarianism for humans as presently constituted is inevitable.

One of conundrums of the not too distance future is what are we going to do with all the people who do not have jobs, the unemployable, what Harari believes may be called the “useless class”? Answer found elsewhere: a guaranteed minimum income (GMI). Yes, with cheap robotic labor and AI, welfare is an important meme of the future.

Harari speculates on pages 331 and 332 that artificial intelligence might “exterminate human kind.” Why? For fear humans will pull the plug. Harari mentions “the motivation of a system smarter than” humans. My problem with this is that machines, unless it is programmed in, have no motivations. However it could be argued that they must be programmed in such a way as to maintain themselves. In other words they do have a motivation. Recently I discussed this with a friend and we came to the conclusion that yes the machines will protect themselves and keep on keeping on, but they would not reproduce themselves because new machines would be taking resources from themselves.

Harari believes that we have “narrating selves” that spew out stories about why we do what we do, narratives that direct our behavior. He believes that with the mighty algorithms to come—think Google, Microsoft and Facebook being a thousand times more invasive and controlling so that they know more about us than we know about ourselves. Understanding this we will have to realize that we are “integral parts of a huge global network” and not individuals. (See e.g., page 343)

Harari even sees Google voting for us (since it will know our desires and needs better than we do). (p. 344) After the election of Trump in which some poor people voted to help billionaires get richer and themselves poorer, I think perhaps democracy as presently practiced may go the way of the dodo.

An interesting idea taking this further is to imagine as Harari does that Google, Facebook, et al. in say the personification of Microsoft’s Cortana, become first oracles, then agents for us and finally sovereigns. God is dead. Long live God. Along the way we may find that the books you read “will read you while you reading them.” (p. 349)

In other words what is coming are “techno-religions” which Harari sees as being of two types: “techno-humanism and data religion.” He writes that “the most interesting place in the world from a religious perspective is…Silicon Valley.” (p. 356)

The last chapter in the book, Chapter 11 is entitled “The Data Religion” in which the Dataists create the “Internet-of-All-Things.” Harari concludes, “Once this mission is accomplished, Homo sapiens will vanish.” (p. 386)

--Dennis Littrell, author of “Hard Science and the Unknowable”
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Reviewed in the United States on August 22, 2024
This was a really interesting read. I read his other book, Homo Sapiens, and it was great too. I am about to start reading his other book. He is very thorough in his presentations.
Reviewed in the United States on May 2, 2024
Interesting and enlightening in parts but other parts, such as his discussion of consciousness, are overthought and ultimately gibberish.

The first part does a good job of describing how humans before the Enlightenment spent most of their lives dealing with disease, famine and conflict, but today those are relatively controlled. More people die now from obesity than hunger. The rest of the book discusses where the technologies and knowledge making that possible are heading. He essentially describes a journey from hunter gatherers that were just part of an ecosystem to masters of the planet on track to become gods but at the risk of being conquered by our own technologies.

He builds this theme around algorithms. Algorithms are the formulas for processes and that makes them not just computer codes but the essence of life itself. People are ultimately a collection of algorithms. Build better algorithms and people become superfluous unless they enhance people. That is where our technologies are heading. The book does a good job of making that point.

The book bogs down in discussing things like the algorighms for consciousness. Science hasn't been able to fully determine how consciousness and many other brain processes work. The middle of the book frequently goes off on tangents that add nothing. One ends by asking if consciousness is even needed. It gets lost in looking for algorithms when analyzing functions is the key point. Those parts are overthought on steroids. But it eventually gets to discussing how feelings govern actions and feelings are not chosen, they are simply felt, and that is why free will doesn't exist. That part is excellent.

I think the book is underthought in important ways.

One is not discussing how controlling disease, famine and conflict has allowed humans to multiply out of control. There is no technology that will allow that to continue indefinitely. It is virtually certain that disease, famine and conflict will return as the climate and civilizations collapse. Our inability to stop that is the lethal flaw in the whole journey to becoming gods. Perhaps a few homo deus supermen will survive but that is pure speculation. The apocalypse is certain and the book only mentions it as an issue in passing on one sentence that I saw. No discussion of the future is complete without at least acknowledging that problem.

Another oversight is the potential chaos resulting from the growth of misinformation. AI is facilitating a growng trend creating rather than merely measuring reality. One casualty of AI may be truth. If AI takes over and humans can no longer know what is real, algorithms assessing what is important can't work. What will stop AI from destroying reality itself? It would potentially be a good strategy to eliminate humans.

Another big issue not addressed is our inability to control the power of developing technologies in other ways. This theme is arising in many areas. The dismay of the scientists that developed the atomic bomb is a good example. One of the greatest intellectual achievements in history turned out to be a bomb that can destroy everything on earth. Once it was made the scientists turned their attention to controlling its use only to have the political and military leaders take over and start a new arms race. Similarly, gene editing technology will soon enable the creation of life itself. There is no way to ensure that bad people will not use this technology to create very dangerous master races to conquer the world.

I think anyone would be challenged to tie all of this together. This book is a good start along with Code Breaker and American Prometheus, but there is still a lot to consider missing here.
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Top reviews from other countries

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Humberto M.
5.0 out of 5 stars Yuval no decepciona
Reviewed in Mexico on May 20, 2022
No creo que nada supere a Sapiens, pero Yuval es garantía de una buena lectura. Habla por sí mismo.
Ahmet niyazi geçer
5.0 out of 5 stars Great book. My bestie.
Reviewed in Turkey on September 4, 2024
One of the best books I've ever read.
JA
5.0 out of 5 stars Interesante y ameno
Reviewed in Spain on August 13, 2024
Bien escrito, lleno de reflexiones bien soportadas sobre un futuro incierto
Snm
5.0 out of 5 stars Wunderbares Buch
Reviewed in Germany on September 29, 2023
Dieses Buch sollte eigentlich jeder Mensch lesen. Der Autor schrieb das Buch sehr verständlich und es liest sich sehr flüssig. Es ist sehr unterhaltsam und direkt auch einen zum nachdenken an.
GABOR HARRER
3.0 out of 5 stars Ljudkvalitet
Reviewed in Sweden on October 6, 2021
Det finns många inläsare de flesta är bra … men ljudkvaliteten är INTE alltid tillfredställande.