having done what you have done and taught that you have thought about the ocean, what is this one thigng is it that sperm whales do? what else do we not know about the ocean that excites you? >> oh, well, what's -- what's down there. what is down there geologically. xact causes, what are the e causes of these is the nominees that killed so many people? why -- these huge tsunamis? warning.me we are so don smart. that is because there is no money. i bet you the japanese are interested in that problem. >> you bet. congratulations. it is really quite amazing. tot's quite amazing, too, suggest that why we need filmmakers and artists is that we can go down with you. we can experience what you did and we can through this kind of program understand what it takes to do what you did. and to see that. nationalntioned to yo geographic. this was june, 2013. we have technology today so you can go find it. some sense of what it is that makes explorers explore. to james cameron. thank you for joining us. see you next time. ♪ >> somebody has to go. a robot cannot tell you how it feels. way toot come all