Dimensional Relativity was released in 1981 as printed booklet. The idea of “turning a signed card inside out” became fashionable enough to see the book through two printings in three months. The reviews were excellent and lots of folk took notice!
The effect is interesting, the handling is minimal, finishes clean, and delivers a novel souvenir! The handling has been simplified from the slightly over-proven direction that burdened the 1981 original
The effect is this: a blue-backed deck is introduced and mixed. A card is selected and signed both front and back by a spectator (or spectators). Once the ink has dried, this card is returned face-down to the centre of the face-up deck. It is explained that “the reversed condition will act as a catalyst” for the magical experiment to follow.
A nearby spectator is now request to set a “reaction in motion” by squeezing the deck between her hands. The performer, however, does not seem convinced that the spectator has succeeded in creating the “magical moment.” Spreading the deck widely across the table, he notes that the selected card is still reversed in the middle of the deck. Sure, the entire deck has changed color (from blue-backs to red backs) but that does not seem to satisfy the performer. “Just a result of internal heat” he comments. “Let’s try one more time...”
The spread is again closed and handed back to the spectator for “another squeeze.” This time, the performer seems satisfied. The deck is once again spread across the table and something very strange is noted: the selected card (still in the center of the spread) has changed—becoming discoloured, grey and foreign-looking! “Way to much heat this time, you’ve blistered the thing.” the performer adds.
This single card is removed and tossed to the table. Showing it on both sides, the performer now taps one corner of the card on the table, creating a little dog-ear. This card, having turned inside out, is now split into two layers—revealing the front and back of the card, complete with signatures, on the inside!
The inverted, and now split card, is given away as a souvenir. And, the performer is left squeaky clean, with a regular deck to continue his performance.