> > > Also, note the use of the "force". He reduced the number of possibilities for the > > > card from 52 (53, if you count the joker) to 48. (Pay very close attention to the > > > wording of the questions to the audience members.) > > > > Oh, less than 48. By a lot. The ball provided psychological cues, and having > multiple > > people make the choice kept any one from picking up on them. Then, of course, the > > three printed cards broke the deck into four groups of cards. > > What cues did the ball provide?
I'm no expert. I've seen it done on science programs. Red over black, leaping orca, numbers and types of small images/panels (I see it was a normal 6 sided beach ball, but with half the sides split in two). Note even the "water" on it wasn't blue, enhancing redness.
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