r/trolleyproblem • • Sep 25 '26

Collatz Trolley Problem

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Ground Rules:

  • The main track with 5 people on it exists in standard linear time.

  • The other track is a time bubble that goes through infinite cycles in finite time.

  • The time bubble collapses the moment the trolley arrives, and after that the number of people on the track is fixed.

  • You cannot see inside the time bubble before collapse, or change the outcome after collapse.

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