[quote=@PharaohAtem]
Because he would create a paradox if he goes back and kills Zeus then a ruse never defeated shim if Zeus never defeated s him he has no reason to go back that is an impossible paradox what I am talking about is a time loop.
[/quote]

What you're talking about is a predestination paradox, an event that results in the creation of itself.

That's Big Bang Theory logic. In quantum mechanics, it's either fifth or sixth dimensional theory, altering the flow of time causes it to diverge rather than fold back upon itself.

The upshot of that if you go back in time the timeline that you originate from is maintained and becomes for all intents and purposes inaccessible to you. Any changes you make in the present will have no effect on your physical being, existence or memories. So if you go back in time and kill your father nothing will happen to [i]you[/i] however the you of that timeline will never be born. This is the version of time travel that is best supported by actual science however it is rarely used in science fiction because if it was you can never return to your own time or place. If you tried you would be traveling to the future of the new timeline that your presence has created. It might be identical to the one you left depending on if you changed history but you would find that timeline's version of you living your life which means that from a story perspective unless one of yourself dies there is no way to write a happy ending and even if one of yourself dies it still kind of melancholy.

The logic that by time traveling you would accomplish an action and because that action was accomplished you have no motivation to go back in time in order to accomplish it is both cyclical reasoning and if it were true prevents time travel from being physically possible because whatever action you did after time traveling would be instantly undone by your future lack of motivation to do it.