The author has built an innovative system for predicting baseball performance, predicted the 2008 election within a hair's breadth, and has become a national sensation as a blogger. Drawing on his own groundbreaking work, he examines the world of prediction.

Originally published: 2012. "Published with a new preface in Penguin Books 2015."

A catastrophic failure of prediction -- Are you smarter than a television pundit? -- All I care about is W's and L's -- For years you've been telling us that rain is green -- Desperately seeking signal -- How to drown in three feet of water -- Role models -- Less and less and less wrong -- Rage against the machines -- The poker bubble -- If you can't beat 'em-- -- A climate of healthy skepticism -- What you don't know can hurt you.