Another "thought experiment"!
Given that the vast majority of divers now use some form of dive computer, and given most DC's both log the dive and are able to push that info up to a internet connected PC, don't we already have a way of carrying out the worlds biggest deco study, effectively, almost for free?
At each surfacing event, the computer would pop up some "rating" quesitions, allowing the user to fill in their subjective thoughts on the deco performance and symptoms of DCS, and all that gets fed back to some server somewhere where the mother of all analysis algorythms tries to make sense of it all?
From 3m pool dives, to 300m world records, all the data, together? That would make the everyone a contributor to deco theory