Hi. Im a 13 years old and interested in particle science. I was reading on tachyons and how you could hypothetically send them as signals back in time (not that I'm saying we will manage anytime soon or ever). It got me think about it and I realized something. I'm sure somebody has heard about this. Say you can travel back in time. What if you kill your father when you go back in time. This would lead to you wiping yourself from the timeline, since you killed your father. However, if you never lived due to the fact that you killed your ancestor, you would have never killed him then. Resulting in the timeline resuming to the original one. Which would cause you to be alive. If this some infinite pattern? Thanks! (Sorry if this is a stupid question: just curious). NOTE: My prefix is not my actual grade: just had to put something there.