Chinese artist Li Wei's Optical Illusions

I really have no idea how Li Wei managed to capture these photos of himself. The closest thing that comes to my mind is Johan Lorbeer.Dangling horizontally out of a skyscraper, his hovering figure looks set to fall to his doom, but this artist 'jumper' hasn't just lost it all on a game of chance - this is performance art with a difference. Li Wei has previously produced series of self-portraits involving faces reflected in mirrors, and photographs of himself crashing into walls and sidewalks. His current work is a mixture of performance art and photography that creates illusions of a sometimes dangerous reality. I would really love if we could brainstorm on this 'installation', and maybe come to a decent conclusion.