Homo Deus

Yuval Noah Harari

Published by



RRP £9.99
Reviewed by

Jude Umeh, FBCS, CITP


9 out of 10

This has to be one of the more thought provoking books I have read in a while, and it boldly tackles a complex and far reaching subject at a most opportune time. Human evolution is something that has fascinated people since Darwin's seminal work on the origin of then species, perhaps even more so now with the advent of true A.I. The thought of self learning systems powering an autonomous independent entity can send shivers down the backs of even the most unflappable of people when it becomes real.

Homo Deus is Yuval Noah Harari's second work on the topic of man's evolution and he does not disappoint. His previous work, Sapiens, paints a compelling picture of the journey humanity has undertaken to get to this point. This work takes us on the next step of that journey by looking ahead into the future of humanity, assuming the current trajectory remains unchanged, in a way that is equally compelling and enlightening.

According to a central argument in the book, the emergence of Homo deus or 'divine man' is the logical next step in human evolution. Homo sapiens (aka thinking man) has progressed far enough on this journey that he is virtually at the cusp of achieving that goal along with mastery of 3 key defining pursuits, i.e: immortality, happiness and divinity. Such a breed of superhuman beings will be sufficiently different from Homo sapiens that the author has chosen to classify them as Homo deus. 

The book traces human belief systems from: belief in divine objects and beings, to belief in society states, and latterly a belief in the individual aka humanism. This is observed to be in step with expanding human communities: from individual family groups and clans to villages, towns and cities; each tier is enabled or limited by man's ability to source food, security and the prevailing communication technology. There is a certain symmetry in the observed progression from God to man and to machines, as it's the latter which is fueling the accelerated evolutionary leap to this new species of human being known as Homo deus.

In addition to excellent coverage of realistic humanism and post humanist scenarios, Harari provokes some insightful questions about the next phase of technology enhanced super-humanity and the emerging belief system of Dataism. Dataism describes the current scientific dogma that unites all branches of learning, and which effectively places man in his place as just another data processing system, amongst all other data processing systems, in a world where everything is all about data. He also touches on the inequity that is bound to become even more pronounced when the elites and their robot assistants / overlords decide to do away with the rest of humanity.

Although this is one heck of an interesting book, it doesn't escape comparison with Harari's initial masterpiece, which somehow manages to make this work appear less fully-formed and lightweight in relation to Sapiens. It asks more questions, albeit really good ones, than it answers, and somehow contrives to ignore the forest for the trees. By this I mean the relative pace of evolution among different species within an ecosystem. Homo Deus if they ever emerge will have to co-exist with and perhaps dominate other species on the planet, but will themselves be dependent on sustainable wellbeing and balance of the ecosystem in which they find themselves.

In spite of the above, and in conclusion, Homo Deus is a delightful, thought provoking peek at a possible next phase of human cultural evolution and data driven existence. It is no surprise that it made the list of books reviewed and recommended by none other than Bill Gates in his 5 Good Summer Reads blog post. For this and other reasons stated above, I give it a resounding 9 marks out of 10.

Further information: Penguin

June 2017