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Math & LogicOne small ahaProbability or paradox

This time-travel paradox asks what happens if a traveller prevents their own ancestry.

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Math & LogicOne small aha
Your new ahaThe Grandfather Paradox

The Grandfather Paradox — category: Time travel paradox. Source: Grandfather paradox ↗

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  3. 20Also called the paradox of the heap, this puzzle asks when removing grains makes a heap cease to be one.RECALL
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