You're holding a 5-euro note. The magician folds it, blows on it, unfolds it, and it has become a 50-euro note. Same spot, same hands, no switch in sight. How?
Watch this trick in action
The technique: the Himber fold
Sterke Valuta uses a variant of the classic Himber fold (named after Richard Himber, 1940s). The note is folded in eights in a specific way, creating a hidden compartment. The other note already sits in that compartment, flat and invisible.
The 'flip' is an illusion: by opening the fold along the other axis, the second note appears and the first disappears into the hidden compartment. Mechanically it's simple, but it takes dozens of hours of practice to perform smoothly.
- ✦Both notes are prepared in advance and joined at one corner
- ✦The fold must be exactly placed so both notes appear identical
- ✦The showy action (blowing, shaking) hides the critical moment
The psychology: why money works especially well
Money instantly activates attention and reward areas in the brain. Spectators focus more strongly on a banknote than on ordinary paper. Paradoxically, that focus is what makes the trick possible, all attention is on the note, not on the subtle finger movements.
We also instinctively believe money must be 'real'. Nobody thinks: 'maybe that's a fake note'. That assumption is exactly what the magician exploits.
Variations worldwide
The trick exists in every currency. American magicians transform dollars, British magicians pounds, and in Asia a 100-yen note often becomes a 10,000-yen note. The effect works everywhere because money is universal, and the psychological impact even more so.
A simple fold, practised for years, combined with the psychology of money: that's how one of the most-requested close-up tricks in the world actually works.