Ken Jennings: Watson, Jeopardy and me, the obsolete know it all

Trivia whiz Ken Jennings has made a career as a keeper of facts; he holds the longest winning streak in history on the U. S. game show Jeopardy. But in 2011, he played a challenge match against supercomputer Watson and lost. With humor and humility, Jennings tells us how it felt to have a computer literally beat him at his own game, and also makes the case for good oldfashioned human knowledge. (Filmed at TEDxSeattleU. ) TEDTalks is a daily video podcast of the best talks and performances from the TED Co