All blackjack players are constantly on the lookout for an edge over the casino. One of the best-known methods is counting cards. This can give the player a tiny advantage which is enough to score consistent winnings over a long period of time. But another lesser-known technique is to utilise something called quantum entanglement. This looks at how each card and hand is somehow connected to another. The only downside is that you'll need a huge bankroll to be able to turn an eventual profit.