I was watching one of David Blaine's old TV specials last night and saw him perform the following. He asked the spectator to name a card. After they named the card he asked the spectator to simply flick a deck in front of them. When they did their card appeared face up. Although I can come up with a couple ideas on how to do this, I can't think of anything as clean as Blaine performed. Has the effect ever been released? Thanks