I'll include spoilers here, fyi.
Just got back from seeing this. It was great on many levels. Very curious how the Widow movie and Witch/ Vision show will work now.
I'm a bit confused about how the time travel piece worked at the end though. They said the changes in the past wouldn't affect their timeline, because it's a different reality every time a change is made. But Captain America somehow was able to go back and still be part of that same timeline, living through the 50s and 60s, etc.
Also, he was supposed to replace the Tesseract right where it was taken, but they affected the timeline in two different places with a tesseract, once with Loki taking it. How do those things affect the present or the timestream?
Also, how could Captain America avoid trying to stop tragedies that happened in his history from taking place? Maybe he did, and as a result the whole timeline we saw through all the movies isn't what the true reality would have been without his interference. Seems like you could have stopped Hydra though, how to prepare New York for the attack from the aliens, Etc. Maybe he was strong enough to just let things proceed as they had to, it would seem against his nature from what we seen all the other movies.
I was actually expecting Black Widow to appear back in this place, as if for one of his last jumps he might have given her the ability to transport into the present time, similar to what happened with gamora.
But maybe all this will make more sense when I re-watch the movie one of these days. Really really enjoyed it. Any quibbles I have are minor.
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