The grandfather's paradox is one of these strange ideas in the brain, making time travel appealing and scary. There are simple questions in the mind that have an impossible effect. What happens if you go back to the past and kill your grandfather before your parents are born? If you succeed, your parents will never be born - and that is not the case. But if they had never been born, would they have come back to kill their grandfather? It is a loop that folds itself, a contradiction that questions the understanding of causality and linear time.
hours is somehow like a one way street road when we came across it. So, physic theories, most importantly when it comes to relativity and quantum mechanics, show that time more flexible more than we think. Some people may even suggest a timeline, universe that's parallel where each option made a new branch. In this case, killing your grandfather with the branch will not destroy her presence as you came from another person. But do you really influence your own past or are you just parallel? The paradox shows a nuclear tension between free will and determinism. If the past cannot be changed, the universe can prevent it in some way - your gun stoub, your goal will fail, and her courage will leave her. This is called the "principle of self-contradiction" and the timeline corrects itself to avoid contradictions. However, if time is liquid and paradoxes are possible, you may not be prepared to understand full-time time at all.
The grandfather's paradox is not just science fiction time travel. It is a mirror of how we think about outcomes, memories, and destiny. Can a small action win positively, or is it all already written? Perhaps the passage of time will not break logic - perhaps it will hit our conviction that an irreversible line will unfold on just one straight.