> It actually means that the first player always loses on average if he bets (expected utility -1/2 if not mistaken). If he folds however the expected utility i

> It actually means that the first player always loses on average if he bets (expected utility -1/2 if not mistaken). If he folds however the expected utility is clearly zero since half of the time wins and half of the time loses. "If he folds however" - this should be "if he checks". It doesn't make sense for him to fold when he isn't facing a bet. The original article uses "pass" to mean both fold and check depending on the context and that can get really confusing.