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Martingale betting (came from Im ready to pull my hair out!)

chevy59el wrote:
I've always believed, you give me a game where I have
about a 50/50 chance, ie. blackjack or red/black roulette, a chance
to continue my bet indefinately and guts enough to keep going, and
I'll make a killing.

In order to be certain that you'll be able to continue betting indefinitely,
your starting bankroll must be infinite. And if your bankroll is already
infinite, any profit you make is worthless to you.

Stuart (RandomStu)

chevy59el wrote:
I've always believed, you give me a game where I have
about a 50/50 chance, ie. blackjack or red/black roulette, a chance
to continue my bet indefinately and guts enough to keep going, and
I'll make a killing.

In order to be certain that you'll be able to continue betting indefinitely,
your starting bankroll must be infinite. And if your bankroll is already
infinite, any profit you make is worthless to you.

Stuart (RandomStu)

And, although, after winning, you're always 1 unit ahead of your old
all-time high, the average result is still 0 at every point, assuming
a break even game, with the losing streaks exactly balancing the wins,
on average. Looking at the cumulative result only after each win is
too selective to give an accurate idea of the value of the system.