I believe that gamblers can beat the casino as long as he stop while ahead. Playing for too long may emptied his bankroll because housed edge may kick in and series of losses may increase overtime resulting for the players loss.
Everyone who plays at a casino knows that it always operates for profit: the programs and algorithms are designed so that a portion of the money is returned to players, the main share of the profit went to the casino. People are drawn by the chance of easy money and fascinated by the process itself, that’s why they gamble. For me, beating the casino is a myth. If you manage to hit a big win, it's just luck, and the most important thing is to stop in time. That’s your real victory.