Greentext

That is just luck, no amount of card counting does that.

Other way around. 10 point cards favor the player. From Wikipedia:

• They increase the player's probability of hitting a Blackjack, which often pays out at 3 to 2 odds (although some Casinos pay at 6 to 5).
• Doubling down increases expected value. The elevated ratio of tens and aces improves the probability that doubling down will succeed. The most common hand values that the player doubles down on are 11, 10, and 9; and drawing a high card to these will make a strong hand.[1]
• They provide additional splitting opportunities for the player.
• They can make the insurance bet profitable by increasing the probability of dealer blackjack.
• They also increase the probability the dealer will bust, in the event that the dealer shows a low up-card (i.e. 2-6). This also increases the odds of the player busting, but the player can choose to stand on lower totals based on the count.

You can just keep a tally in your head adding or subtracting a number when certain cards are played. Doesn't require that much skill. The skill is in pretending everything is normal that and half of the people who just joined the table just met you for the first time.

It...really wasn't a great movie in general nor about card counting. Reasons:

• Actual people it was based on were all Asian, but they had to put white people in it because Hollywood.
• The actual people played in Atlantic City which makes sense considering Las Vegas is like 2000 miles away from MIT.
• When they arrive at the casino, the rag tag cast shows up in style and makes it incredibly obvious that they are all a part of the same group which is like card counting kryptonite.
• Morpheus delivers the least convincing punch since the 3 Stooges.
• It takes place well after casinos started shuffling after every hand. The strategy would not have worked in 2008.
• Dumbass kid stores thousands of dollars in the ceiling of a building where he doesn't even have the only key. Safe deposit boxes are not expensive.
• MIT uses a 5 point GPA system, so a 4.0 GPA is not terribly impressive.
• I got a 3.8 from MIT, don't tell anyone that last point.

Its allowed. Using a tool to help you IS NOT.

Betting table max, 3 hands, out of nowhere is a big indication you're counting. It is, after all, a betting strategy.

And casinos stop it because if they allow it it could shut the whole place down. A business that loses money doesn't stay open for long.

I've been a shift manager at casinos for years. I can tell the counters a mile away. I can deal a shoe and tell you the count at any point. I don't kick em out, but I'll flat bet them. Say the betting spread is $5-$500, right? They've played 10 hands at $5, now they bet $500. I'll walk over and place a new placard on the table, $25-$25. They can only bet $25 a hand, no variation.

Anyone who's there to press an advantage will walk immediately. And then we'll make a dossier on them and it'll get shared, nationally.

Yep. It is like that. Would you expect less, c'mon.