No no, I'm not done. There are variations of the Prisoner's Dilemma. It's called the Donation Game. If One gives something greater than Two, One loses. If Two gives something greather than One, Two loses. If they give something of equal value, they neither win nor lose. If they give nothing, they neither win nor lose.

The set of rules we've been given reverse that by adding a punishment component. But think about it-- I've told you about two versions of this dilemma. All of them have four outcomes.

[He gestures emphatically to the paper.]

That only has three.