Great Memory People - Banned from Casino ?

Anecdotal story :

I have a friend, who claims that his friend who is great at remembering numbers (remember PI to 40 thousand decimals or something) was banned from casinos.
Can this be true ?

It could be true.

Casinos are free to bar any player for any reason, so it could be true.

The claims of banning far exceed the actual occurences. I would want some type of proof before excepting it.

As private businesses, casinos can ban anybody they want for any reason they want. It is unusual for somebody to be banned from all casinos, usually a person is just banned from all the casinos owned by the same company. A friend of mine was high up in security at a Vegas Casino and told me there is a “banned from” list that all the casinos share with each other, and they do keep a closer eye on people who were banned from other casinos. In your specific case, it’s possible that if your friend’s friend was winning consistently for an extended period of time, the casino might think he was cheating (they don’t have to prove it unless they try to press charges) and thrown him out.

Assuming your friend’s story was true, he was probably banned for counting cards, which requires excellent memory and the ability to mathematically finagle things in one’s head, but is not legally considered to be cheating (so it’s not a crime, but the casino can still kick you out and ban you for it.)

Actually, I believe that you can’t kick someone out of an Atlantic City casino unless they violate some rules, and a good memory doesn’t violate any rules.

But the only game where a great memory helps (that I know of) is blackjack. And the casinos can simply shuffle after each deal when you play, thus eliminating any benefit for you. Once you’ve been identified as someone they don’t want to play, you are pretty much screwed.

One comment: It’s a myth that card counting in blackjack requires a good memory. If you can remember a single number in your head, and add and subtract single digits from it as you see cards come out, you can be a card counter.

The only memory required is the memorization of basic strategy, and the top 18 strategy variations based on the count.

Almost anyone can learn to be a card counter.

What is FAR more difficult is doing it so that you aren’t detected, and also being able to stick to the proper strategy even when the outcome is bad. For instance, most bad blackjack players won’t hit a 16 against a dealer’s face card, even though they should. They may even KNOW they should, but after busting the last three times they tried it, they just can’t bring themselves to do it again.