What Betting Systems Actually Change
No progression system changes the house edge โ roulette’s odds are fixed by the wheel, not by your bet size. What systems change is your variance: some make small wins more frequent at the risk of a large loss.
The Martingale Trap
Doubling your bet after every loss recovers your losses on the next win, in theory โ until you hit a table limit or run out of bankroll during a losing streak, which happens more often than most players expect.