Now have the spectator turn the chosen card face down and place it back into the deck held face up

and yet the performer is able to predict the outcome well in advance and with 100% accuracy

"A cardician whose passion for the subject is second only to the uninhibited skill he has worked hard to achieve

I would do that

you can perform multiplications

The Greatest One-Man Psychic Effect of All-Time | Mark Strivings Engel Now have the spectator turnThere are a variety of reasons why certain effects attain the status of 'classic.' In some cases, it is because of a revolutionary plot. One that hasn't happened before and sets the magic and mentalism world on fire. In other cases, it's a concept. While this may or may not be in terms of effect, it inevitably has something to do with the method. Sometimes it's an effect wherein the effect to method ratio is so beyond all reason that its popularity