the.com/grandfather paradox
Kill your grandfather in the past and erase the you that pulled the trigger.
means A thought experiment used to argue that backward time travel is logically impossible, because it lets you cause an effect that cancels its own cause.
from Coined in the 20th century by writers and physicists debating time travel's logical consistency — the French science-fiction author René Barjavel sketched the idea in his 1943 novel 'Le Voyageur Imprudent,' and the 'grandfather' framing became the standard shorthand in later philosophical and physics discussions of causality loops.
- origin
- coined by French writer René Barjavel, 1943
- the catch
- your existence cancels the act that prevents it
- physics fix
- some models force self-consistent timelines, no contradictions allowed
- easier target
- kill your younger self instead, same logical mess