How David Blaine Held His Breath
time.com
time.com
EDIT: Funny, I paused to make this comment immediately before his story about the doctor suggesting the illusion of not breathing.
http://www.fourhourworkweek.com/blog/2009/10/30/how-to-hold-...
Freediving is one of those sports that seem to deify and defy rational explanation.
The article claims that the record without oxygen assistance is 8:58. Your 11.5 claim would beat that by quite a bit.
I guess to be fair at the time of the article AIDA's record was only 9:08. But if the article is worth reading today it's worth comparing to today. The point really is that holding your breath for 8 minutes was/is not the achievement Blaine('s publicist) wanted it to be.