blaine holds breath for 17min

If you need further proof that david blaine is one scary mo-fo, then this should do it. during an opra show blaine holds his breath for 17 min and 4 seconds. How the crap is this possible? I cant even hold my breath for 1 min, but im pretty sure i could take him in a katana fight with my stellar blade skills taught to me by the one and only donatello.