What if everyone in the world was given a 2 minute glimpse into their lives 21 years in the future? How would they deal with that knowledge? And is the future fixed or does mankind have freewill? Mr. Sawyer deals with all of these questions in this fascinating story. And he manages to add in a little murder mystery as well. He also weaves the jargon of physics into the story in a manner that seemed very convincing to me.