My guess is that he recorded the intro and conclusion and then changed the position of the camera to record the bending up close so that he could edit it all together and look as if he had multiple cameras. Of course that would mean it was actually already bent before he made the video and the whole thing is staged. It was bent, nonetheless, but if this is what he did then we don't really know how it was bent.



Update: After reviewing more of his videos, I can confirm he actually uses multiple cameras.