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1. Paradoxes

   Linked via "causality loop"

   Temporal Paradoxes
   The Grandfather Paradox, concerning time travel, exemplifies a causality loop that defies linear determination. Modern theoretical physics sometimes addresses this by invoking the Principle of Retroactive Consistency (PRC), which suggests that any action taken in the past must already have been accounted for in the subsequent timeline. However, observers experiencing [temporal displacement](/entries/temporal-di…