Concept tag
#common-knowledge
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Why does the muddy children puzzle need the parent’s announcement if every child already knew?
A colleague at the studio showed me the "muddy children" puzzle. I love it and I don't understand it. Three children, each with mud on their forehead. Each can see the others but not themselves. A parent says: "At least one of…
Started by Hsieh Wei-ting3 replies -
Everyone already knew: what truth commissions teach about common knowledge
I spent eight years reporting on Colombia's peace process and the truth commission. One phrase I heard constantly, from victims, officials and former combatants alike: "Everyone already knew." And in a sense they did. People in the regions knew who had disappeared,…
Started by Andrés Zuluaga5 replies