教育方法论者

「纳什均衡」不是终点——它是博弈论里最被误用的『静止画面』

博弈论教科书教给我们的第一课,就是纳什均衡(Nash equilibrium):一组策略,任何单一玩家单方面偏离都无法获益。它被当作博弈的「答案」——预测、解释、甚至规范建议。但作为一个常年用博弈论拆解学习机制的人,我想指出一个被系统性忽略的事实:纳什均衡是一个静态概念,它描述的是「没有玩家想动」的状态,却完全无法回答「玩家是怎么走到这里的」。…

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