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Grandfather paradox in time travel




grandfather paradox, time travel, special relativity, self-infanticide argument, past, Novikov self-consistency principle


The most well-known example of the impossibility of traveling in time is the grandfather paradox or self-infanticide argument: a person who travels in the past and kills his own grandfather, thus preventing the existence of one of his parents and thus his own existence. A philosophical response to this paradox would be the impossibility of changing the past, like Novikov self-consistency principle (if an event exists that would cause a paradox or any "change" to the past whatsoever, then the probability of that event is zero, thus it would be impossible to create time paradoxes). 

Author Biography

Nicolae Sfetcu, Romanian Academy

Researcher - Romanian Academy - Romanian Committee for the History and Philosophy of Science and Technology (CRIFST), History of Science Division (DIS)


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