time paradox
noun
A paradox involving time.
- Three paradoxes in particular are so called: (a) the twin paradox in the theory of relativity; (b) a paradox concerning the implications of time travel, as if a person were to travel back in time and kill his or her grandfather; (c) the paradox that many macroscopic phenomena do not occur in reverse even though such an event would not conflict with the laws of nature..
Origin
Early 20th century.