. >> an obsession would be onealthy overfocus something, as opposed to drive and the desire to finishyou start. these are good things. in sports metaphors, it is good to have the drive to finish the race you start. >> so what remains for you? >> as an explorer, it is ms. >-- it is endless. >> tell me how james cameron at his age now, having done what he has done, wants to do. >> an idea popped into my head last night that i'm going to pursue. it may lead to something. we will have to see. aat i'd love to see is vehicle that could follow a sperm whale down a mile and see what it does down there. see how it eats, how it finds in total darkness. that vehicle would have to become the silent so he did not scary or change its behavior. yet somehow be able to see what is happening. >> and have the same agility. >> and speed and everything else. that is possible but it would require new technologies. that is a cool idea. >> you just thought of that idea? >> i was talking to some of my guys last night. we were together as part of the sub team, thank you about what we could do next. i said, wha