Watch any movie that involves card counting and the process is generally portrayed as some sort of incredible mental mind magic. The depiction will often involve some or other smart person staring intently, performing unexplained mental acrobatics, then, like magic, they will suddenly win their hand. They will continue to win, again and again, until getting kicked out of the casino.
Card counting has been around for as long as people have been betting on card games. In the casino industry, it’s usually done in the Blackjack series of games as this is where it becomes the most effective. However, it is quite the talent. The player has to remember large lists of numbers and odds based on the cards left in the deck, plus the exact list of cards that have already been played. All of this needs to be done while continuing to play as if you have the same information as every other player at the table.