Roulette is full of streaks- and we don’t mean the naked variety. It would be difficult to argue against that. You are unlikely to sit down at your pc playing online roulette, & see R,B,R,B,R,B,R,B,R,B,R,B,R,B, for example (although theoretically you could).
Some streaks are incredibly long (there’s a legend that 28 “evens” occurred in a row in Monte Carlo in the 30s). Many people have seen 12 of the same colour in a row.
Some streaks are very short.
Under this system you set a starter number, say 3. Any time you see 3 in a row on the even money bets (red/black, odd/even etc), you pile in with a bet on the same outcome on the very next bet.
I guess you have seen the downside to this strategy. Basically, every spin of the wheel is a mutually exclusive event and if you are having a bet on the red, you have a 1:2.2 chance of winning. Period. The wheel has no memory.
Your brain is hard wired to see patterns in things, and this is the trick it is playing on you!