Most of it are simple tricks. For instance he always has an audience watching. this is supposed to assure you that even if you were standing right there watching you couldnt figure out what was going on. However, they are probably confederates, people he pays to pretend like they are just picked off the street. This is used in a lot of "magic" tricks. With this in mind just remember that you are watching a tv show With different angles, special effects, computer effects and spliced together footage. You assume there is some complicated way of preforming the tricks. He is really just using cheap hollywood trickery.