> From what I've read, casinos are perfectly happy to let you count cards in blackjack. The advantage you get is so small, that even a few mistakes per hour mea

> From what I've read, casinos are perfectly happy to let you count cards in blackjack. The advantage you get is so small, that even a few mistakes per hour means you'll lose a bunch of money. It's only if you count cards and win that you get kicked out. It's not that the advantage is small (if it were, the MIT team would never have been so successful in the first place). It's that most people who try aren't good enough to do it well, so the casino is happy to let them try (and fail), thereby making money for the casino.