Certainly not in the sense of the gambler's fallacy, but you can be sure that someone's fortunes from playing casino games will exhibit mean reversion in the se

Certainly not in the sense of the gambler's fallacy, but you can be sure that someone's fortunes from playing casino games will exhibit mean reversion in the sense that the next game is always more likely to bring their cumulative winnings closer to the house edge rather than further from it. Not so with the stock market. The stuff about card counting is basically impossible to do these days but can alter the house edge, and also doesn't apply to the market.