In the eyes of your spectator this effect is impossible. However, for such a "special occasion"
routine, I'm just not sure if it's worth the mental gymnastics. You must memorize multiple different
sequences of numbers and sort through that information instantly in performance. If you hesitate at
all it can risk possible exposure of the method. Not for me but I can see this routine working well
for psychics and mediums. I'm sure the method could also be used in other applications after some
experimentation.