Paradox Question

Jun 25, 2017, 4:36 AM |

I have been thinking this for a long time.

A time travel paradox question.

Think you have invented a time machine and you go to the past before your grandfather is born and then you go and kill him .Now your grandfather is dead but if your grandfather is dead then either of your mom or dad wouldn't be born and if they weren't born then you weren't born and if you weren't born then who killed your grandfather???