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The underworld is overcrowded, and Zeus has ordered Hades to let some spirits out. Hades arranges all the souls of the dead in a line before Cerberus. When one of his three heads bites down on the soul in front of it, they’ll get returned to the land of the living. Anyone to the left must stay in Hades forever. Can you pick the right spot and escape the underworld? Dan Finkel shows how.

Lesson by Dan Finkel, directed by Artrake Studio.

Animator's website: https://www.artrake.com
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View full lesson: https://ed.ted.com/lessons/can....-you-solve-the-riddl

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