“Under the ‘Prosperity’ set of rules, every player gained each time someone acquired a new property (designed to reflect George’s policy of taxing the value of land), and the game was won (by all!) when the player who had started out with the least money had doubled it.”

This seems like an arbitrary cut-off point. How do we know that if the game were to continue the result wouldn’t end up being the same, with one player still controlling a monopoly of all the properties?