Homo Deus begins with a controversial argument. For thousands of years, the same three problems have preoccupied humanity. From the people of twentieth-century China to those of medieval India, from the Roman Empire to the first city-states in ancient Mesopotamia: Famine, plague, and war. But now, in our third millenia—and after centuries of fruitless prayers and failed experiments—we have managed to rein in famine, plague, and war. This may seem hard to accept, but, as Harari explains in his trademark style—thorough, yet riveting—they have been transformed from incomprehensible and uncontrollable forces of nature into manageable challenges, a transformation that can only be understood by looking at the big picture. 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. If indeed we are bringing famine, plague and war under control, what will replace them at the top of the human agenda? Like firefighters in a world without fire, so humankind in the twentieth-first century needs to ask itself an unprecedented question: What are we going to do with ourselves? In a healthy, prosperous and harmonious world, what will demand our attention and ingenuity? History does not tolerate a vacuum. If famine, plague and war are disappearing, something is bound to take their place on the human agenda. With the same perception, insight, and philosophical clarity that made Sapiens an international hit and a New York Times bestseller, Harari explores the issues that he predicts will come to consume our future—likely to be immortality, happiness and omnipotence. It took us a while, but we evolved into humans. And over the millenia to come, our quest will be turning humans (homo sapiens) into gods (homo deus).