total volume of air he had but it had to have been getting to the point where it was becoming unbreathableolutely right, you would be using up more of that breathable airplane as time goes on. >> i understand you grew up in and around tug boats. is there anything specific about the condition of tugs that formed this pocket and helped him survive or is this pocket of air something that could form in any boat that sinks? >> i think the pocket of air could form in any particular boat, but this boat was a larger tug boat. the fact that he was just in the right place at the right time. i mean, it wasn't a situation that i know of where he was under water completely and swam to a pocket of air. he was just in the right place at the right time and, you know, incredibly lucky. >> obviously, these rescue divers were experienced. i would freak out if i'm expecting to find bodies and find somebody alive, it seemed that hand come out of there, that would have -- that's like a horror movie. >> i know. i watched the video. it would have been giving them quite a startle. >> fascinating stuff. thank you s