Any conscious breathing pattern beyond regular breathing, if done long enough, will blow off the entire body's store of CO2 and eventually cause total hypocapnia and even a hypocapnic blackout.
The reporter explains how their breathe-ups were 'longer and longer' between each hold, with it being very likely that they didn't even 'refill' their CO2 store from each breath hold. As such, the reporter's progress was almost entirely due to gradually decreasing CO2 levels with each successive hold. It makes little difference how forcefully they were breathing. What is much more relevant was *how long* they breathed for.
Trux called David Blaine's previous apnea stunt a 'flop', when in fact it was one of his most successful events ever. His fan base, public image and popularity increased, he developed and got deep sympathy for the planned 'failure', and so on. It was a masterpiece of execution that came to exactly the end that had been planned all along -- even Kirk admitted that at some point. So I don't think it is right to call it a 'flop.'
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Eric Fattah
Canada
http://www.liquivision.ca
"I encourage you to be free in the way you measure your success. I don’t claim to know what it will be like to be in your position, but I know that when you leave here, grades will be handed out differently. Your ability to gauge your success will largely depend on how you perceive it. You can shape it, set it up, feel it, and define it. Allow competition to turn inward. Do not depend on awards, money, or other validations." -Jonny Moseley
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