How are the heroes able to avoid creating a looping paradox?
Thats why the plan the Avengers come up with isnt about rewinding the clock.
Basically, dont think of it as time travel.
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If you do, you just end up with older or younger versions of yourself.
(Thats what happened to Ant-Man.
They pushed timethroughhim.)
Think of it literally as a movie thats easy to do, right?
Its a continuum, and you cant rewind your own film while youre still moving forward.
Thats what the heroes do.
To put it another way, they copy and paste reality.
Thats why The Ancient One explains to Bruce Banner that removing the stones basically ruins her own timeline.
Why is her DVD existence any better than his DVD existence?
When the three teams jump back in time, theyre really jumping to three other screenings of the movie.
However, yes, back in his own Blu-ray, hes now dead and The Snap never even happens.
That remains a branch that cant realign with the Prime Timeline because it has changed too much.
(Expect that to be where this charactersupcoming Disney+ seriesis set.)
That Gamora is gone.
New Gamora could still be a part ofGuardians of the Galaxy Vol.
Just expect her to have a significantly different personality.
This is also why Nebula can kill her 2014 self without disappearing.
Shes not killing herself from the past, shes killing a counterpart from another Blu-ray.
To draw another metaphor, think of it likeToy Story, when Buzz Lightyear meets another Buzz Lightyear toy.
Its a version of him, yeah, but a different one from the Buzz we know.
Again that separate 2014 timeline then branches off without Thanos, no Nebula, and also absent Gamora.
Basically, he goes to live in another copy of the movie.
