A deck was shuffled by spectators. They think of any number from 1 to 52, and deal down number of card same as their thought number.

They look at the card they stop. And put it back on the deck. They cut it into the middle. Which only in a range of 15 to 30 seconds, the magician look through the whole deck and remember the positions of all the cards.

Spectator told what is their card, and you can read exactly where is it. And after that, the magician can tell a stunning prediction about the number they thought of at the beginning of the trick Let's learn the trick now!