The prisoner's dilemma linked to in the article is usually the go-to demo since it only has 4 outcomes. The nash equilibrium would be for both prisoners to def

The prisoner's dilemma linked to in the article is usually the go-to demo since it only has 4 outcomes. The nash equilibrium would be for both prisoners to deflect but this is worse than if they both stayed silent. Both staying silent is not an equilibrium because if one of them decides to be selfish and cheat, he can do better for himself. Basically the information you need is agreement/cooperation ahead of time to know that neither side will cheat just to do slightly better for himself at the cost of others.