Sapiens and Homo Deus

by Yuval Noah Harari

  Science fiction rarely describes such a future, because an accurate description is by definition incomprehensible. Producing a film about the life of some super-cyborg is akin to producing Hamlet for an audience of Neanderthals. Indeed, the future masters of the world will probably be more different from us than we are from Neanderthals. Whereas we and the Neanderthals are at least human, our inheritors will be godlike.

  Physicists define the Big Bang as a singularity. It is a point at which all the known laws of nature did not exist. Time too did not exist. It is thus meaningless to say that anything existed ‘before’ the Big Bang. We may be fast approaching a new singularity, when all the concepts that give meaning to our world – me, you, men, women, love and hate – will become irrelevant. Anything happening beyond that point is meaningless to us.

  The Frankenstein Prophecy

  In 1818 Mary Shelley published Frankenstein, the story of a scientist who tries to create a superior being and instead creates a monster. In the last two centuries, this story has been told over and over again in countless variations. It has become a central pillar of our new scientific mythology. At first sight, the Frankenstein story appears to warn us that if we try to play God and engineer life we will be punished severely. Yet the story has a deeper meaning.

  The Frankenstein myth confronts Homo sapiens with the fact that the last days are fast approaching. Unless some nuclear or ecological catastrophe intervenes, so goes the story, the pace of technological development will soon lead to the replacement of Homo sapiens by completely different beings who possess not only different physiques, but also very different cognitive and emotional worlds. This is something most Sapiens find extremely disconcerting. We like to believe that in the future people just like us will travel from planet to planet in fast spaceships. We don’t like to contemplate the possibility that in the future, beings with emotions and identities like ours will no longer exist, and our place will be taken by alien life forms whose abilities dwarf our own.

  We seek comfort in the fantasy that Dr Frankenstein can create only terrible monsters, whom we would have to destroy in order to save the world. We like to tell the story that way because it implies that we are the best of all beings, that there never was and never will be something better than us. Any attempt to improve us will inevitably fail, because even if our bodies might be improved, you cannot touch the human spirit.

  We would have a hard time swallowing the fact that scientists could engineer spirits as well as bodies, and that future Dr Frankensteins could therefore create something truly superior to us, something that will look at us as condescendingly as we look at the Neanderthals.

  We cannot be certain whether today’s Frankensteins will indeed fulfil this prophecy. The future is unknown, and it would be surprising if the forecasts of the last few pages were realised in full. History teaches us that what seems to be just around the corner may never materialise due to unforeseen barriers, and that other unimagined scenarios will in fact come to pass. When the nuclear age erupted in the 1940s, many forecasts were made about the future nuclear world of the year 2000. When sputnik and Apollo II fired the imagination of the world, everyone began predicting that by the end of the century, people would be living in space colonies on Mars and Pluto. Few of these forecasts came true. On the other hand, nobody foresaw the Internet.

  So don’t go out just yet to buy liability insurance to indemnify you against lawsuits filed by digital beings. The above fantasies – or nightmares – are just stimulants for your imagination. What we should take seriously is the idea that the next stage of history will include not only technological and organisational transformations, but also fundamental transformations in human consciousness and identity. And these could be transformations so fundamental that they will call the very term ‘human’ into question. How long do we have? No one really knows. As already mentioned, some say that by 2050 a few humans will already be a-mortal. Less radical forecasts speak of the next century, or the next millennium. Yet from the perspective of 70,000 years of Sapiens history, what are a few millennia?

  If the curtain is indeed about to drop on Sapiens history, we members of one of its final generations should devote some time to answering one last question: what do we want to become? This question, sometimes known as the Human Enhancement question, dwarfs the debates that currently preoccupy politicians, philosophers, scholars and ordinary people. After all, today’s debate between today’s religions, ideologies, nations and classes will in all likelihood disappear along with Homo sapiens. If our successors indeed function on a different level of consciousness (or perhaps possess something beyond consciousness that we cannot even conceive), it seems doubtful that Christianity or Islam will be of interest to them, that their social organisation could be Communist or capitalist, or that their genders could be male or female.

  And yet the great debates of history are important because at least the first generation of these gods would be shaped by the cultural ideas of their human designers. Would they be created in the image of capitalism, of Islam, or of feminism? The answer to this question might send them careening in entirely different directions.

  Most people prefer not to think about it. Even the field of bioethics prefers to address another question, ‘What is it forbidden to do?’ Is it acceptable to carry out genetic experiments on living human beings? On aborted fetuses? On stem cells? Is it ethical to clone sheep? And chimpanzees? And what about humans? All of these are important questions, but it is naïve to imagine that we might simply hit the brakes and stop the scientific projects that are upgrading Homo sapiens into a different kind of being. For these projects are inextricably meshed together with the Gilgamesh Project. Ask scientists why they study the genome, or try to connect a brain to a computer, or try to create a mind inside a computer. Nine out of ten times you’ll get the same standard answer: we are doing it to cure diseases and save human lives. Even though the implications of creating a mind inside a computer are far more dramatic than curing psychiatric illnesses, this is the standard justification given, because nobody can argue with it. This is why the Gilgamesh Project is the flagship of science. It serves to justify everything science does. Dr Frankenstein piggybacks on the shoulders of Gilgamesh. Since it is impossible to stop Gilgamesh, it is also impossible to stop Dr Frankenstein.

  The only thing we can try to do is to influence the direction scientists are taking. But since we might soon be able to engineer our desires too, the real question facing us is not ‘What do we want to become?’, but ‘What do we want to want?’ Those who are not spooked by this question probably haven’t given it enough thought.

  Afterword: The Animal that Became a God

  SEVENTY THOUSAND YEARS AGO, HOMO sapiens was still an insignificant animal minding its own business in a corner of Africa. In the following millennia it transformed itself into the master of the entire planet and the terror of the ecosystem. Today it stands on the verge of becoming a god, poised to acquire not only eternal youth, but also the divine abilities of creation and destruction.

  Unfortunately, the Sapiens regime on earth has so far produced little that we can be proud of. We have mastered our surroundings, increased food production, built cities, established empires and created far-flung trade networks. But did we decrease the amount of suffering in the world? Time and again, massive increases in human power did not necessarily improve the well-being of individual Sapiens, and usually caused immense misery to other animals.

  In the last few decades we have at last made some real progress as far as the human condition is concerned, with the reduction of famine, plague and war. Yet the situation of other animals is deteriorating more rapidly than ever before, and the improvement in the lot of humanity is too recent and fragile to be certain of.

  Moreover, despite the astonishing things that humans are capable of doing, we remain unsure of our goals and we seem to be as discontented as ever. We have advanced from canoes to galleys to steamships to space shuttles – but nob
ody knows where we’re going. We are more powerful than ever before, but have very little idea what to do with all that power. Worse still, humans seem to be more irresponsible than ever. Self-made gods with only the laws of physics to keep us company, we are accountable to no one. We are consequently wreaking havoc on our fellow animals and on the surrounding ecosystem, seeking little more than our own comfort and amusement, yet never finding satisfaction.

  Is there anything more dangerous than dissatisfied and irresponsible gods who don’t know what they want?

  Notes

  1 An Animal of No Significance

  1. Ann Gibbons, ‘Food for Thought: Did the First Cooked Meals Help Fuel the Dramatic Evolutionary Expansion of the Human Brain?’, Science 316:5831 (2007), 1,558–60.

  2 The Tree of Knowledge

  1. Robin Dunbar, Grooming, Gossip and the Evolution of Language (Cambridge, Mass.: Harvard University Press, 1998).

  2. Frans de Waal, Chimpanzee Politics: Power and Sex among Apes (Baltimore: Johns Hopkins University Press, 2000); Frans de Waal, Our Inner Ape: A Leading Primatologist Explains Why We Are Who We Are (New York: Riverhead Books, 2005); Michael L. Wilson and Richard W. Wrangham, ‘Intergroup Relations in Chimpanzees’, Annual Review of Anthropology 32 (2003), 363–92; M. McFarland Symington, ‘Fission-Fusion Social Organization in Ateles and Pan’, International Journal of Primatology 11:1 (1990), 49; Colin A. Chapman and Lauren J. Chapman, ‘Determinants of Groups Size in Primates: The Importance of Travel Costs’, in On the Move: How and Why Animals Travel in Groups, ed. Sue Boinsky and Paul A. Garber (Chicago: University of Chicago Press, 2000), 26.

  3. Dunbar, Grooming, Gossip and the Evolution of Language, 69–79; Leslie C. Aiello and R. I. M. Dunbar, ‘Neocortex Size, Group Size, and the Evolution of Language’, Current Anthropology 34:2 (1993), 189. For criticism of this approach see: Christopher McCarthy et al., ‘Comparing Two Methods for Estimating Network Size’, Human Organization 60:1 (2001), 32; R. A. Hill and R. I. M. Dunbar, ‘Social Network Size in Humans’, Human Nature 14:1 (2003), 65.

  4. Yvette Taborin, ‘Shells of the French Aurignacian and Perigordian’, in Before Lascaux: The Complete Record of the Early Upper Paleolithic, ed. Heidi Knecht, Anne Pike-Tay and Randall White (Boca Raton: CRC Press, 1993), 211–28.

  5. G. R. Summerhayes, ‘Application of PIXE-PIGME to Archaeological Analysis of Changing Patterns of Obsidian Use in West New Britain, Papua New Guinea’, in Archaeological Obsidian Studies: Method and Theory, ed. Steven M. Shackley (New York: Plenum Press, 1998), 129–58.

  3 A Day in the Life of Adam and Eve

  1. Christopher Ryan and Cacilda Jethá, Sex at Dawn: The Prehistoric Origins of Modern Sexuality (New York: Harper, 2010); S. Beckerman and P. Valentine (eds.), Cultures of Multiple Fathers. The Theory and Practice of Partible Paternity in Lowland South America (Gainesville: University Press of Florida, 2002).

  2. Noel G. Butlin, Economics and the Dreamtime: A Hypothetical History (Cambridge: Cambridge University Press, 1993), 98–101; Richard Broome, Aboriginal Australians (Sydney: Allen & Unwin, 2002), 15; William Howell Edwards, An Introduction to Aboriginal Societies (Wentworth Falls, NSW: Social Science Press, 1988), 52.

  3. Fekri A. Hassan, Demographic Archaeology (New York: Academic Press, 1981), 196–9; Lewis Robert Binford, Constructing Frames of Reference: An Analytical Method for Archaeological Theory Building Using Hunter-Gatherer and Environmental Data Sets (Berkeley: University of California Press, 2001), 143.

  4. Brian Hare, The Genius of Dogs: How Dogs Are Smarter Than You Think (Dutton: Penguin Group, 2013).

  5. Christopher B. Ruff, Erik Trinkaus and Trenton W. Holliday, ‘Body Mass and Encephalization in Pleistocene Homo’, Nature 387 (1997), 173–6; M. Henneberg and M. Steyn, ‘Trends in Cranial Capacity and Cranial Index in Subsaharan Africa During the Holocene’, American Journal of Human Biology 5:4 (1993): 473–9; Drew H. Bailey and David C. Geary, ‘Hominid Brain Evolution: Testing Climatic, Ecological and Social Competition Models’, Human Nature 20 (2009): 67–79; Daniel J. Wescott and Richard L. Jantz, ‘Assessing Craniofacial Secular Change in American Blacks and Whites Using Geometric Morphometry’, in Modern Morphometrics in Physical Anthropology: Developments in Primatology: Progress and Prospects, ed. Dennis E. Slice (New York: Plenum Publishers, 2005), 231–45.

  6. Nicholas G. Blurton Jones et al., ‘Antiquity of Postreproductive Life: Are There Modern Impacts on Hunter-Gatherer Postreproductive Life Spans?’, American Journal of Human Biology 14 (2002), 184–205.

  7. Kim Hill and A. Magdalena Hurtado, Aché Life History: The Ecology and Demography of a Foraging People (New York: Aldine de Gruyter, 1996), 164, 236.

  8. Ibid., 78.

  9. Vincenzo Formicola and Alexandra P. Buzhilova, ‘Double Child Burial from Sunghir (Russia): Pathology and Inferences for Upper Paleolithic Funerary Practices’, American Journal of Physical Anthropology 124:3 (2004), 189–98; Giacomo Giacobini, ‘Richness and Diversity of Burial Rituals in the Upper Paleolithic’, Diogenes 54:2 (2007), 19–39.

  10. I. J. N. Thorpe, ‘Anthropology, Archaeology and the Origin of Warfare’, World Archaeology 35:1 (2003), 145–65; Raymond C. Kelly, Warless Societies and the Origin of War (Ann Arbor: University of Michigan Press, 2000); Azar Gat, War in Human Civilization (Oxford: Oxford University Press, 2006); Lawrence H. Keeley, War before Civilization: The Myth of the Peaceful Savage (Oxford: Oxford University Press, 1996); Slavomil Vencl, ‘Stone Age Warfare’, in Ancient Warfare: Archaeological Perspectives, ed. John Carman and Anthony Harding (Stroud: Sutton Publishing, 1999), 57–73.

  4 The Flood

  1. James F. O’Connel and Jim Allen, ‘Pre-LGM Sahul (Pleistocene Australia – New Guinea) and the Archaeology of Early Modern Humans’, in Rethinking the Human Revolution: New Behavioural and Biological Perspectives on the Origin and Dispersal of Modern Humans, ed. Paul Mellars, Ofer Bar-Yosef, Katie Boyle (Cambridge: McDonald Institute for Archaeological Research, 2007), 395–410; James F. O’Connel and Jim Allen, ‘When Did Humans First Arrive in Greater Australia and Why is it Important to Know?’, Evolutionary Anthropology 6:4 (1998), 132–46; James F. O’Connel and Jim Allen, ‘Dating the Colonization of Sahul (Pleistocene Australia – New Guinea): A Review of Recent Research’, Journal of Radiological Science 31:6 (2004), 835–53; Jon M. Erlandson, ‘Anatomically Modern Humans, Maritime Voyaging and the Pleistocene Colonization of the Americas’, in The First Americans: The Pleistocene Colonization of the New World, ed. Nina G. Jablonski (San Francisco: University of California Press, 2002), 59–60, 63–4; Jon M. Erlandson and Torben C. Rick, ‘Archaeology Meets Marine Ecology: The Antiquity of Maritime Cultures and Human Impacts on Marine Fisheries and Ecosystems’, Annual Review of Marine Science 2 (2010), 231–51; Atholl Anderson, ‘Slow Boats from China: Issues in the Prehistory of Indo-China Seafaring’, Modern Quaternary Research in Southeast Asia 16 (2000), 13–50; Robert G. Bednarik, ‘Maritime Navigation in the Lower and Middle Paleolithic’, Earth and Planetary Sciences 328 (1999), 559–60; Robert G. Bednarik, ‘Seafaring in the Pleistocene’, Cambridge Archaeological Journal 13:1 (2003), 41–66.

  2. Timothy F. Flannery, The Future Eaters: An Ecological History of the Australasian Lands and Peoples (Port Melbourne: Reed Books Australia, 1994); Anthony D. Barnosky et al., ‘Assessing the Causes of Late Pleistocene Extinctions on the Continents’, Science 306:5693 (2004): 70–5; Barry W. Brook and David M. J. S. Bowman, ‘The Uncertain Blitzkrieg of Pleistocene Megafauna’, Journal of Biogeography 31:4 (2004), 517–23; Gifford H. Miller et al., ‘Ecosystem Collapse in Pleistocene Australia and a Human Role in Megafaunal Extinction’, Science 309:5732 (2005), 287–90; Richard G. Roberts et al., ‘New Ages for the Last Australian Megafauna: Continent Wide Extinction about 46,000 Years Ago’, Science 292:5523 (2001), 1,888–92.

  3. Stephen Wroe and Judith Field, ‘A Review of Evidence for a Human Role in the Extinction of Australian Megafauna and an Alternative Explanation’, Quaternary Science Reviews 25:21–2 (2006), 2,692–703; Barry W. Brook et
al., ‘Would the Australian Megafauna Have Become Extinct if Humans Had Never Colonised the Continent? Comments on ‘‘A Review of the Evidence for a Human Role in the Extinction of Australian Megafauna and an Alternative Explanation” by S. Wroe and J. Field’, Quaternary Science Reviews 26:3–4 (2007), 560–4; Chris S. M. Turney et al., ‘Late-Surviving Megafauna in Tasmania, Australia, Implicate Human Involvement in their Extinction’, Proceedings of the National Academy of Sciences 105:34 (2008), 12,150–3.

  4. John Alroy, ‘A Multispecies Overkill Simulation of the End-Pleistocene Megafaunal Mass Extinction’, Science, 292:5523 (2001), 1,893–6; O’Connel and Allen, ‘Pre-LGM Sahul’, 400–1.

  5. L. H. Keeley, ‘Proto-Agricultural Practices Among Hunter-Gatherers: A Cross-Cultural Survey’, in Last Hunters, First Farmers: New Perspectives on the Prehistoric Transition to Agriculture, ed. T. Douglas Price and Anne Birgitte Gebauer (Santa Fe: School of American Research Press, 1995), 243–72; R. Jones, ‘Firestick Farming’, Australian Natural History 16 (1969), 224–8.

  6. David J. Meltzer, First Peoples in a New World: Colonizing Ice Age America (Berkeley: University of California Press, 2009).

  7. Paul L. Koch and Anthony D. Barnosky, ‘Late Quaternary Extinctions: State of the Debate’, Annual Review of Ecology, Evolution, and Systematics 37 (2006), 215–50; Anthony D. Barnosky et al., ‘Assessing the Causes of Late Pleistocene Extinctions on the Continents’, 70–5.