疯狗问题

8年前汶川地震,在blog上讨论过疯狗问题(本博“众所周知”及“答chen”)。近日陶哲轩在博客上提到类似问题(里面的blue-eyed islander puzzle就是疯狗问题),原文链接为: 这里

为什么汶川地震会导致“疯狗问题”的讨论呢?因为当时举国默哀。引用Terry Tao 文中的术语,举国对汶川的同情之心,是一个“mutual knowledge” 。默哀之后,变成“common knowledge”。

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