Understanding what gives the casino their edge is critical. It is called the “house edge” and put simply it means “unfair payouts”. We shouldn’t make this part more complicated than it needs to be. An example is if you bet on red, you would win 50% of the time IF there was no green 0. But there IS a green zero.
An example not involving 0 is as follows: there are 37 numbers on the European wheel including 0. The 0 pocket is really just another pocket. Nothing makes it special besides it being green. Now if you bet on say number 32 for 37 spins, statistically you will win once where you are paid 35 units plus the original unit you wagered. So after 37 spins, you are left with 36 units. Now this is the critical part to understand . . . If the payouts were FAIR, the payout would be 36-1 which means that after the 37 spins, you would be left with 36 units + the 1 unit you wagered, which means you have broken even.
In other words, the unfair payout ensures that even when you win on an individual spin, you still lose in the long term. Forget about betting progression (changing bet size after losses) – it wont help you because each spin is independent, and an increased bet size only means you stand to lose more on that individual spin. And forget about the notion that after 10 blacks in a row, red is more likely to spin because of some kind of “natural balance”. It just doesn’t work that way. It is a well tested fact that previous spins don’t affect future spins (there is one critical and overlooked exception I’ll explain in later issues).
Hopefully this issue has helped clear up misconceptions about what roulette is. You may need to read it a few times if the concepts are new to you.