Unbound: How Eight Technologies Made Us Human and Brought Our World to the Brink

*A Wall Street Journal Bestseller*

Like Guns, Germs, and Steel, a work of breathtaking sweep and originality that reinterprets the human story.

Although we usually think of technology as something unique to modern times, our ancestors began to create the first technologies millions of years ago in the form of prehistoric tools and weapons. Over time, eight key technologies gradually freed us from the limitations of our animal origins.

The fabrication of weapons, the mastery of fire, and the te...