You can drop the flamesuit and change back into your divegear, GP. No flamethrower here.
GP once bubbled...
... freediving to such extreme depths has no purpose other than for setting records or competition. ... What scientific data do we need to discover yet that isn't known already about holding your breath and descending underwater to 500+ feet?
I will not claim that people engage in these endeavors for scientific reasons, personally I believe they do it because they have an inner drive that wants them to push boundaries. But we as a society benefit from all of their successes and failures because we learn more about the environment and ourselves.
Before this thread, I had no idea that freedivers could go to depths past 200 feet, let alone 500! If you would have told me that the human body was capable of freediving to these kinds of depths, I wouldn't have believed you. Who could have imagined that the human body could take that?
holdingmybreath mentioned that deep freedivers have mastered a technique to fill their sinuses with water, that's an ability that wouldn't be readily apparent without the sport of deep freediving. What's the immediate payback? I don't know, but that pushes our understanding of how resilient the human body really is.
But pushing boundaries is not about finding a quick payback ... it's about finding limits. Did we really need to climb Mt Everest? Did we really need to send astronauts to space and the moon? Do we really need high energy particle accelerators like Fermilab? What's the immediate forseeable payback? Knowledge. What's the long term payback? The continual bootstrapping of this human society from a bunch of cave dwelling monkeys to a society that flies with the birds, swims with the fishes and may someday travel to the stars.
I would never ask anyone to push the boundaries just so I can learn. But if they CHOOSE to do so in a professional and responsible manner, then I will support them. And if need be, mourn them when things do not go their way. Either way, I will respect their courage to push the limits of our understanding.
She was a professional freediver, she chose to push the limits. She did many practice dives before this one that gave her confidence to pursue this record. Her work has contributed to our body of knowledge. Mourn her loss.
By the way, had she been a newbie and tried to freedive to anywhere near that depth, I would have nominated her for a Darwin award.
Too bad God didn't provide each of us with an owner's manual with their body. This way you could just look up the specs -- oh yea, the autonomous system will conk out after being deprived of oxygen after 6 minutes and the skin can handle up to 20 atmospheres of pressure before rupturing.