You'll find out that people thought Drake's idea of drilling for oil was ridiculous, that Thomas Jefferson predicted it would take a thousand years for the frontier to reach the Pacific Ocean, that fast food was a consequence of the Civil War, how John Deere's steel plow or Eli Whitney's cotton gin changed the face of the Earth, how scheduled passenger ships came to be, why Americans prefer showers to baths and why Americans like ice in their drinks. And how one invention led to another one, in an endless cycle of Darwinian selection and evolution.