ET Is (probably) Out There -- Get Ready - Seth Shostak

SETI researcher Seth Shostak bets that we will find extraterrestrial life in the next twenty-four years, or he'll buy you a cup of coffee. At TEDxSanJoseCA, he explains why new technologies and the laws of probability make the breakthrough so likely -- and forecasts how the discovery of civilizations far more advanced than ours might affect us here on Earth. (Filmed at TEDxSanJoseCA.)

Talk by Seth Shostak.