| the hypothetical cause-and-effect of time travel and making changes in the past that would affect current actions. |
| causality paradox n. A hypothetical effect that would result if an individual were to travel back in time and cause changes to the circumstances that led to his or her current actions. |
causality paradox  (kô-zāl'ĭ-tē) Pronunciation Key
A paradox resulting from hypothetical time travel, in which an individual travels back in time and performs actions that would ultimately have made the time travel impossible (as by killing one's parents at a time preceding one's birth). |