We linked recently to a review of this book, and that makes a compelling case. His publisher’s blurb says:

Yuval Noah Harari, author of the bestselling Sapiens: A Brief History of Humankind, envisions a not-too-distant world in which we face a new set of challenges. Where do we go from here? And how will we protect this fragile world from our own destructive powers? In Homo Deus, he examines our future with his trademark blend of science, history, philosophy and every discipline in between.

But if you have 90 minutes to let the author compel you through discussion, the intelligence squared recording below will not let you down