Yeah I know about the cheap version (of standing on one foot from an angle)... but ... it is not what D.Blaine and the others are using. These guys are clearly OFF the ground from both feet.
(unless they use nanotube cables, invisible to the eye .... but I thought these were not coming out for a few years more)
"Only the happy can escape the labyrinth, but only those who escape are happy"
well, maybe the impromptu scenes aren't as impromtu as they appear and D.Blaine is using some type of thin cable that's easy to remove in post(??) When he walks after touching ground he always walks forward. . .his legs are always together when floating, maybe there is something to that.