One hundred thousand years ago, at least six different species of humans inhabited Earth. Yet today there is only one – Homo sapiens. What happened to the others? And what may happen to us? Most books about the history of humanity pursue either a historical or a biological approach, but Dr. Yuval Noah Harari breaks the mold with this highly original book that begins about 70,000 years ago, with the appearance of modern cognition. Dr. Harari also compels us to look ahead, because, over the last few decades, humans have begun to bend laws of natural selection that have governed life for the past four billion years. We are acquiring the ability to design not only the world around us but also ourselves. Where is this leading us, and what do we want to become?