Can you solve the famously difficult green-eyed logic puzzle? - Alex Gendler
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One hundred green-eyed logicians have been imprisoned on an island by a mad dictator. Their only hope for freedom lies in the answer to one famously difficult logic puzzle. Can you solve it? Alex Gendler walks us through this green-eyed riddle.
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- Educator Alex Gendler
- Director Outis
- Narrator Addison Anderson
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Additional Resources for you to Explore
See a couple of different formulations of the puzzle here, here, and here, along with discussions that show why the precise details of the puzzle setup make a huge difference. Read more about common knowledge at the Stanford Encyclopedia of Philosophy, or check out David Lewis’s original book: Convention: A Philosophical Study on the subject. To see how the concept can apply to economics and game theory, take a look at the work of Robert Aumann, Shyam Sunder, and John Allen Paulos.
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About TED-Ed Originals
TED-Ed Original lessons feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed original? Nominate yourself here »
Meet The Creators
- Educator Alex Gendler
- Director Outis
- Narrator Addison Anderson
