Paradoxes don't exist in nature, so why does the grandfather paradox make sense in physics?
This question has no mathematical or physical answer and can only have a philosophical answer.
Seemingly true mathematical logic is based on axioms where we just assume they are true without any proof and philosophically the only thing we are sure exists are humans I think therefore I exist.
I understand that mathematics may encounter many paradoxes of logic, but in nature and physics no paradox exists.
So why do we exclude the possibility of traveling in the past, by the paradox of the grandfather based on a mathematical logic which admits the possibility of having paradoxes, but in physics and in nature no paradox exists...
I believe that even if a traveler travels in the past and eliminates all his ancestors or even all of humanity, nature, which does not like paradoxes, will make him exist even without a father and mother.
And after that I wonder if we could exist without father and mother?
What if we all existed before time even existed?
And if the front bigbang is made of an infinity of fatherless, motherless humans who were born in the past or the present or the future of our universe, that's why the grandfather paradox does not exist, and that the equations of the universe are understandable by humans, who are a strange matter that switches between two states dream and reality and that exists before the universe and in the universe and after the universe?
in any case the only thing that is sure to exist at 100% are humans...
And I end this question with a poem which goes in the same direction of this philosophical idea of "I think therefore I exist" and which goes beyond this idea to say that any point and even the universe exists" because all is a human or a group of people who think therefore there is...
“Points and humans and the universe:
I am a simple point who thinks I am the end point. (A human like the others)
One point multiple (thoughts) and at the same time alone (one person).
I can be in a complex (mind) or simple (reality) plan.
When I see my multiple points away from me. (not be human)
I remind them that we are one point. (We are all Humans)
Every point away from me does the same thing as me. (I’m a Human)
And every point close to me dreams with me.
All points are reminiscent of the points.
And there are certain points that follow imaginary paths (Friendship and Love).
To remind you at the end point that he is not alone.
It is thanks to that that the universe moves.
And who are you?”