What Is a Paradox?
6. The Grandfather Paradox
This is another classic paradox that revolves around time travel. Let’s say that you want to go back in time to meet your grandfather, and shoot him dead. It doesn’t matter why, you just do. Imagine you are successful in your endeavors and, as a result, your grandfather dies before he can father your own father.
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If your father didn’t live, this would mean that you don’t live, and this would mean that you are unable to go back in time to kill your grandfather. If you are unable to go back and kill your grandfather then it would mean you still lived, meaning you are then able to go back and kill your grandfather.
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