Take a simple banknote, a €10 note for example, a 100% ordinary note, without preparation and without any special effects! Fold the €10 banknote in half, then in four in front of your spectators, hold it between thumb and forefinger, in full view and in full light, just a few centimeters from your spectators! YOU HAVE TO SEE IT TO BELIEVE IT IS SUCH PURE! Now blow towards the €10 banknote so that it turns into a €20 banknote on sight! NOTHING CAN BE FASTER, MORE VISUAL, MORE IMPOSSIBLE!! Immediately unfold the €20 banknote to show it on all sides… it’s a banknote, nothing more!