[BruceZ]

If you can look at your cards, then your opponent can look at his cards too. To make money on either side, you would have to be the one betting that it would either happen or that it wouldn't happen based on your cards, and your opponent would have to always accept your bet regardless of his cards. If your opponent could refuse the bet, and you bet that it won't happen when you have 2, then he should only accept when he has 0, and he will win 51.2% of the time. He would never accept when you bet it will occur.

Similarly, if he is the one betting that it will occur based on his cards, and he knows you will accept when you have 2, he would only bet when he has 0 and he would win 51.2% of the time. So if he knows this, you could never accept.