[AaronBrown]

I agree, although they don't have to chop the pot to have the game continue. As long as the one who was ahead before the hand loses, both players will have money afterwards. So when the antes plus blinds exceed the total amount of cash in the game, there is slightly less than a 50% chance that the tournament can continue another hand. It could last forever, but only in the sense that a fair coin can flip heads forever.