Leo_G. comments on The Fear of Common Knowledge - Less Wrong

21 Post author: Eliezer_Yudkowsky 09 July 2008 09:48AM

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Comment author: Leo_G. 09 July 2008 10:48:15PM 0 points [-]

Not to start a traditional puzzle flame war, but can someone clarify for me the situation where at least three people on the island have blue eyes? It seems that in this case everyone knows that everyone knows [...] that there is "at least one person with blue eyes".

Blue-eyed person A: "Look at that poor sap over there with the blue eyes [B]. I bet he thinks there's only one person with blue eyes [C] on this island. Little does he know!"

Help?