[quote=natsumehack]
How about this idea, alt universe's exist, but each has there own time line/flow, that is independent of one another.The idea that you would exist outside existent comes from the idea that the timeline try to repair it's self but because of how your action cause more problems, the space fabric of your own existences tares meaning you are dead, in this timeline the one you came from, but you yourself as a being is not effected by the changes this cause, rather you are a exception that has occurred to try to keep this timeline from collapsing into it's self like a time black hole.In this timeline where you killed yourself you are immortal as stuff don't effect you normally, but in other timelines of different alt universe's where you alt past and future past both still live, you can be killed as the timeline of this universe wasn't the one that you paradox, and still effects you as if you didn't kill yourself.
[/quote]

My natural question is how would you exist outside of existence, what would sustain your consciousness?. You would no longer be a part of the natural fabric of spacetime. Heck TBH your idea could be true simply because we have absolutely no idea what could happen, but then because of this any and all ideas about what could happen outside of existence are valid. Assuming you remain a being, even tough that requires existing, I suppose you would be unkillable. But then simply because you can't interact with existence, timelines and all seeing as they are a part of existence and you have no way of rejoining existence, if you are even conscious then you would experience literal nothingness. No time. No space. Just nothing. It would be hell.