You must know what the underlying thinking is that you will lose every time you gamble.
Although there is only a slight advantage, if the game continues for a long time, the weight that can be won is unlimited. But if it is less than 0.5, if you persist for a long time, you will definitely fail.
False gambler (leek): You will definitely win the next game
Real gambler (me): If I buy ten more coins, I won’t believe I can’t catch it!