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TheRoguePenguin Since: Jul, 2009
2015-12-24 18:58:43

It'd be a Stable Time Loop, because eventually the grandson would have to travel back to become the grandpa again, else you have a paradox.

bwburke94 (Y2: Electric Boogaloo)
2015-12-25 03:24:34

Wibbly wobbly timey wimey.

2025: the year it all ends?
TheOneWhoTropes Since: Feb, 2010
2015-12-25 13:34:24

Wasn't something similar the actual plot to that episode of Doctor Who? The one that introduced us to the Weeping Angels?

Keeper of The Celestial Flame
Fighteer MOD (Time Abyss)
2015-12-25 15:48:30

It's a Predestination Paradox. Simply put, the information in the loop has no origin outside of the loop itself. The loop has no way of starting in the first place, but it's still a Stable Time Loop because if you ignore that fact, the loop is self-sustaining.

Edited by Fighteer "It's Occam's Shuriken! If the answer is elusive, never rule out ninjas!"
bwburke94 (Y2: Electric Boogaloo)
2015-12-26 01:45:17

^^ The actual episode of Doctor Who doesn't have anyone become their own ancestor, but there's an implied predestination paradox from the girl who ends up in 1920. It's just a bunch of fan theories, though.

2025: the year it all ends?
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