drbill:
Hmmm... come to think of it though, they don't require the ability to fly (with wings, not as a pilot) if you want to go skydiving. Maybe that is much more important!
Well, when we dive in caves the ability to surface swim won't save us. If our equipment completely forsakes us, we die. Sort of like the pilot who's plane stops flying. He's going to fall and that's all there is to it.
But... for pilots, as well as divers who dive in envronments where there is no way out other than to continue diving, there's lots of other training that open water divers aren't required togo through.
Ther is another aspect also. Tom Mount talks about what he calls survival training. He's refering to going until you can't go anymore and then going a bit further. It's preperation for the situation where you're about out of options, out of wind and out of strength but you need to find a way to go just a bit more. The stamina and watermenship skills that IANTD recommends (they aren't required for all courses) kind of relect that philosophy. Look at the list in their standards. All that is sopossed to be done with no more than 5 minutes of rest inbetween.
I always point to poor skills as the primary reason for diving deaths and I absolutely think that what gets divers in trouble but, lots of them could still live if they didn't give up. Whether they panic or just quit, some of them are still very much alive when they make the decission to stop working toward a solution.
We encourage this. We make training easier. Not by improving training methods but by just taking things out of training. ooops, all of a sudden, you just don't need to know it anymore. We'll certify those who aren't comfortable enough in the water, can't swim, are in lousy shape ect. They have absolutely no skills or abilities to draw on in a situation like this. They can't make up for lousy diving skills with stamina, determination and watermenship skills and they can't avoid the need for the survival skills by using their great diving skills because they don't have those either.
So...if everything goes just exactly right, these divers will be fine. What we see all the time though, is that when things do go wrong, they don't do very well. If it wasn't for the netwerk of resorts with good hand holding DM's and preplanned dives, so may of these divers would fresh meat.