I WAS THERE! How David Blaine flew helium balloons to the height of jets (and jumped)

So you were in on it?
David Copperfield didn't make a 747 disappear on TV. The TV crew and the audience did by going along with it.
Would it help if I told you I believe you told me you were there for it?
Did he actually make the ascent? Rhetorical as it would involve me believing claims.
He would have had top be wired in. One good jolt, especially after the 5 minute mark being tired, and his shoulder socket would begin to have issues not being disjointed, and maintaining grip without assistance.
HAVE TO. 
No one is hanging on like that without assistance, so the first thing that has to be addressed would be what wasn't shown, the rig, I'm guessing like a corset with a cable running up his arm to be attached to the balloon mechanism. Notice the lack of a question mark. Not a question.
One thing I have learned.
Don't play 3 card monte to catch the cheat. Just know he has to cheat in order to not be sitting on the sidewalk handing out 20 dollar bills.
He is an illusionist.
He isn't trying to violate physics, just fool you into believing he has.
It's always a gimmick. 
Physics Girls are into gimmickry?
Sorry, I didn't watch.
As I said, I don't play 3 card monte.