Re: What is "IP" discussion of Internal power.
Well, in all the demonstrations Chen Xiaowang is doing, in this video, his arm is under the other guys. So maybe he's not using this redirection, but his arm is exactly where it needs to be in order to do this.
There are other ways to achieve this result, but we'd have to examine those on a case by case basis. If more IP experts would put their stuff on video, we could do this, so we could better see what is happening. Maybe they'll start showing more stuff on video...