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# 在北京的这段日子

### 小剧场

（这一阶段获得的奖励，毕业照，等等）互联网公司着装半夜的北京
(Strictly Dominating) strategy $\alpha$ strictly dominates $\beta$ if payoffs from $\alpha$ is strictly higher than that from strategy $\beta$ regardless of others' choices.

(Weakly Dominating) strategy $\alpha$ weakly dominates $\beta$ if payoffs from $\alpha$ is higher than or at least the same as that from strategy $\beta$ regardless of others' choices.
• Lesson 1. We should never play a strictly dominated strategy.
• Lesson 2. Rational play by rational players can lead to bad outcomes. (wisdom!)
• Lesson 3. To figure out what actions you should choose in a game, a good first step is to figureout what are your payoffs (what do you care about) and what are other players' payoffs.
• Lesson 4. If you do not have a dominated strategy, put yourself in your opponents' shoes totry to predict what they will do. For example, in their shoes, you would not choose a dominated strategy.