Fwiw using a computer to gain an advantage over a casino is illegal in Nevada, New Jersey, and most other gambling jurisdictions worldwide. Also if you're reading this, chances are you are smart enough to be able to successfully employ any of the popular counting systems sans computer. However, because counting is both readily identifiable by casinos (who will bar you from playing blackjack) and delivers a relatively small edge, most professional gamblers have moved along to things like hole carding (finding weak dealers that expose their down card(s) as they deal, which is effective in a variety of games), ace tracking, exploiting the poorly designed side-bets that are popping up in all table games, and utilizing loss discounts that casinos give to most large players that can turn the odds in the player's favor when used with the right games and bets.
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A neuroscience researcher (& personal friend) who works with high functioning autistic patients has said before that the best advantage in playing cards is to watch the other players for tells. These autistic patients are sometimes taught to watch for facial expressions as its not natural for them. This particular neuroscientist is very good at blackjack, but its not enjoyable for him.
The real advantage that advantage these high functioning autistic players have is that they usually don't show any emotion while playing blackjack. Also, These players are usually smart enough to know that "counting cards is stupid" and hate being compared to Rain Man.
The issue with card counting in blackjack is that to have an advantage, the player must vary their bet size according to the count. Casino surveillance personnel and floormen also know how to count cards, and when they see the player raise and lower their bet consistently with the count, will do one of three things. First, they will "flat-bet" them - tell them that they are welcome to play, but must bet the same amount from the beginning to the end of each shuffle. If the player is caught a second time, they will be told that they are welcome to play any game in that casino except for blackjack. On strike 3, they will be "trespassed" - walked off the property by casino security, and told that if they come back, the police will be called and they will be arrested. Some casinos skip directly to step 3, especially if they suspect team play (where a player is betting the minimum while counting, and signals for a big player to come in and bet the max when the count is favorable).
I don't understand this comment. In blackjack you play against the dealer. Dealer plays a fixed strategy. Your cards are dealt face up. Showing or not showing emotion doesn't enter into it.
In poker, on the other hand, being able to read other players, and not being read in return, is useful.
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