Thanks, but not really what I'm looking for.
First off, even if Capt. Bond's free ascent was unaided, which doesn't seem likely from 1ata at 363 ft. I don't see how it applies to SCUBA since he was starting from a 1ata pressure vessel. 'Course, if the sub flooded, the pressure would have gone up, and his last breath would have been, what? 11ata? My quick search didn't turn up details, but I wasn't interested in spending a lot of time on it.
Second, I was rather looking for first-hand experiences.
Third, I don't subscribe to evolutionary theory, but based on it's premises, I don't see how millions of years moving away from the ocean would somehow enable us to return. It seems to me that diving is primarily driven by our curiosity, and actually counter to Darwinian survival of the species. And, it has nothing to do with the topic of the thread.