Prisoner’s dilemmas ponder what happens when two rational agents, unable to communicate with one another, must choose between betraying the other for a large individual reward or cooperating for a more modest shared reward. These thought experiments are accompanied by a caveat – if both agents betray one another, they’re left with nothing. One of the best-known examples of game theory, the implications of prisoner’s dilemmas are more than just theoretical, extending to real-life matters of government and diplomacy. Illustrated with whimsical felt stop-motion, this TED-Ed animation puzzles through two prisoner’s-dilemma scenarios in which gingerbread men are forced to chew over how to keep the maximum number of limbs.
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Nature and landscape
Take a serene hike through an ancient forest, inspired by a Miyazaki masterpiece
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Design and fashion
The mundane becomes mesmerising in this deep dive into segmented displays
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Physics
A song of ice, fire and jelly – exploring the physics and history of the trumpet
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Architecture
Tour the European architecture that dreamed of a wondrous, fictitious China
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Spirituality
Trek alongside spiritual pilgrims on a treacherous journey across Pakistan
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Thinkers and theories
Photographs offer a colonialist window to the past – one that must be challenged
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Animals and humans
An artist and ants collaborate on an exhibit of ‘tiny Abstract Expressionist paintings’
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Mathematics
How a curious question about colouring maps changed mathematics forever
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Meaning and the good life
The world turns vivid, strange and philosophical for one plane crash survivor
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