Causal Loop

A Strange Loop in which two events cause each other through the introduction of time travel. The opposite of the Grandfather Paradox

Examples

• 2005 Doctor Who

  The series usually, but not always, resolves time travel paradoxes with causal loops.

• 2014 Interstellar

  The success of the expedition causes humanity to survive into the distance future; the mission only succeeds because far-future humans effect the events that allow for the expedition.