Roulette Martingale. Interesting

From the wizard site

Interesting:

Betting Systems - Martingale
Would it be that in general the longer you play the more likely you are to lose, with the exception of games where the player can overcome the dealer advantage? Do you recommend a strategy to overcome this, such as initially making large bets as a percentage of deposit. If you come out ahead on larger bets, then you can reduce the size of your bets to try to stay in the game longer.
CHRIS FROM ANDOVER

Yes, in a negative expectation game (as most are) the longer you play the more likely you are to lose. If you want to maximize your chances of a net win, at the cost of a possible very large loss, then the best strategy is to bet more after losing, thus trying to recoup past losses. The Martingale is an example of a very aggressive form of this strategy.