comcast business built for business. i've been struggling to keep up with my regimen in a quest to live forever. i'm putting a lot of energy into preserving my physical body for as long as i can, but nobody's going to live forever. what i want to know is can we outlive our bodies. >> i'm going to go see a guy, names ray kurzweil, who's one of the leading futurists in the world who has some ideas about this. hey, how are you? >> how are you doing? >> i'm morning. great to meet you. should i take my shoes off? >> sure. would you like coffee? because i -- >> okay. >> ray is an accomplished inventor and currently chief engineer at google. he's been called the most radical futurist on earth. >> caffeine is good. it's good for your brain. >> today he's going to tell me how if i just live long enough i might be able to cheat death