I am not up on current freediving rules, and I don't know the current record, but it is basically a Darwin Award in the making. Used to be that the diver descended with a weight on a wire, then finned back to the surface.
And what does the species learn from this exercise?
There are several disciplines within freediving. I've corresponded with Guillaume personally as a freediving writer and former freedive editor for Deeperblue.net. He is friends wwith a colleague of mine.
Unless you have a thorough understanding around the mammalian dive reflex and how the human body utilizes it to accomplish what he is capable of, please keep your lack of information to yourself.
as a side note: I've done 30 meters on a single breath swimming down and back up as part of my freedive instructor certification
Cliff Etzel
Solo Video Journalist | Micro Documentary Film Maker bluprojekt | SoloVJ Blog
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Cliff - I reiterate, freediving depth records as well as air scuba depth records are much ado, signifying nothing.
I purchased my first scuba outfit in 1954, (before you were born?) Taught a few hundred people to scuba dive in the early sixties. My underwater cinematography credits include 15 seasons of "Mutual of Omaha's Wild Kingdom (four Emmys and a Gold Hugo from the Atllanta Film Fest)," "Smithsonian World ," "Nova," "Omni," the BBC, and other Smithsonian expeditions. I have done Harp Seals under the ice, King Crabs, Shark attack behavior at Enewetak , Sea Snakes in the Coral Sea, and Marine Iguanas in the Galapagos to name a few subjects.
Don't remenber ever freediving to 100 feet, is 85 feet OK? I have been down to 800' in a minisub.
I admire freediving pelagic spearfish guys, there was a good doc on PBS a few years ago, but I really think that animal behavior is where its at.
Cliff >> There are several disciplines within freediving
There are, and none where anyone has gone to 600ft weighted only. The "only" way to reach such depths is on a sled and you'd need a bag (buoyancy) to get you back up in time for not being dead.
This is also why Guillaume has explained that hitting the bottom in the way described in the film is something he never did and that would have been impossible to do.
In no way does this distract from the awesomeness of what he does and the amazingness [:-)] of this particular Sony Ericsson commercial however.