
Yeah, I know... but I wouldn't be a mathematician if I wasn't a pedant as well
I remember when I was a student, we learned the lesson about how, in theory, for a 2:1 payout you can always just keep doubling your bet until you eventually win, and you'll make a profit equal to your initial bet. My girlfriend at the time went straight to the casino to bet on red, and lost six times in a row. If it had turned up black one more time she would have hit the maximum bet limit and walked out several hundred dollars poorer, haha. Fortunately, it came up red and she gratefully walked out $10 richer and let the panic attack die away.
Believe that’s called the Martingale system and it’s why bet maximums based on minimums were introduced. At least that’s what they told me when I did my crappier training. But yeh, takes balls to go all the way like that.