The question (to me) is how did he hide it from the live audience. For us there are so many edits the substance could have been slipped in at any time. The audience seem like such cooperative enablers that they won't protest.
There's another great one where that guy "burns a hole in a piece of paper" with qi.
His assistant is sitting behind him in an office chair. My guess... a little hand held laser.
But who knows? Maybe he's completely for real. Who am I to say scuze me if I'm being a snood. A few beers and whiskeys and i just say what it think.