You walk into a casino, and you play roulette.
You bet
$10 on black,
lose
$30 on black
lose
$90 on black
lose
eventually
black comes out and you win.
I think the only thing stopping you would be the table limits?
Table limits will stop you but also at some point you can't triple your bet anymore because you run out of money. This is similar to martingale strategy where you double your bet after every loss, but you will run out of money at some point. The odds really don't change.