David Blaine’s ‘Ascension’ balloon stunt floats him 24,900 feet into the air
live-streamed on YouTube. (You can recap the action in the video above.)Although he told The Post he only expected to reach 18,000 feet, Blaine actually made it up to 24,900 feet before taking the plunge.In addition to potentially crashing into the ground, Blaine faced hypothermia and hypoxia, a condition that occurs when oxygen becomes scarce to the body.It was a performance 10 years in the making.