lesson 1 : Do not play a strictly dominated strategy.
lesson 2 : People choosing a dominant rational choice can lead to bad outcomes.
lesson 3 : You can't get what you want, till you know what you want. (payoffs matter)
lesson 4 : Put yourself in others' shoes and try to figuer out what they will do.
lesson 5 : Yale students are evil.
Definition:
We say that my strategy Alpha strictly dominants my strategy Beta, if my payoff from Alpha is strictly greater than that from Beta, regardless of what others do