grandfather paradox

Etymology
From the paradox proposed by the French author in 1944 in his book ; in its original form the paradox of one person going back to the past and killing their biological grandfather before the latter fathered the traveler's father, thus preventing the time traveler from ever being conceived in the first place.

Noun

 * 1) The paradox of time travel in which inconsistencies emerge through changing the past.

Translations

 * Finnish: isoisäparadoksi
 * German: Großvaterparadoxon, Großvater-Paradoxon
 * Japanese: 祖父殺しのパラドックス
 * Mongolian: алагдсан өвөөгийн парадокс, өвөөгийн парадокс
 * Russian: