Delusion (folie à deux) by Alexander Marsh is a devilishly deceptive method to predict ANYTHING.
A drawing, a name, a place, a word from a book or even a combination of the above!
You can prove that you’ve accurately predicted what a spectator has thought of with;
– no impression devices,
– no forces of any kind,
– no special pens,
– no electronics,
– no secret writing.