Spoilers Marvel Cinematic Universe spoiler-heavy speculation thread

[Set Harth]

I've got several things on my mind right now pertaining to the MCU:
1. It's baffling to me that even 6 years after the fact, there are still people who refuse to accept or believe the Canonical fact that Peggy Carter's husband on the Sacred Timeline was "Steve Rogers All Along".

...because it isn't true?

"One thing that's clear that Anthony and I have discussed, I don't know that we've discussed this publicly at all, Cap would have had to have traveled back to the main timeline. That's something that, yes, he would have been in a branch reality, but he would have to travel back to the main timeline to give that shield to Sam Wilson.

In our internal logic that we defined in the room, that was the choice that we made. Based on everything that happened, he would have been in a branch reality and then had to have shifted over to this, so jumped from one to the other and handed the shield off."

 

[Jayson1]

What I think happens is Captain America goes back in time and creates a second timeline but the TVA knows Sam Wilson has to get the shield so they let Captain America return to that timeline briefly to give it to him before taking him back to his new timeline.

 

[DigificWriter]

...because it isn't true?

"One thing that's clear that Anthony and I have discussed, I don't know that we've discussed this publicly at all, Cap would have had to have traveled back to the main timeline. That's something that, yes, he would have been in a branch reality, but he would have to travel back to the main timeline to give that shield to Sam Wilson.

In our internal logic that we defined in the room, that was the choice that we made. Based on everything that happened, he would have been in a branch reality and then had to have shifted over to this, so jumped from one to the other and handed the shield off."

The Russos didn't write Endgame's script, and the people who did - Markus and McFeeley - stated what actually happened and what they'd been building towards across every other script that they wrote (The First,Avenger, The Winter Soldier, Civil War, and Infinity War), which is what I described: Peggy's husband was always Steve.

So I remain baffled as to why there remains confusion over this when the evidence of five separate movies supports the writers' intentions and not the directors' personal opinions.

 

[Dick Whitman]

It’s the only thing that makes any sense. The movie in a humorous way says all of tv and movie tv travel theories are wrong to make their own questionable theory legitimate. But the most commonly excepted theory on Steve’s presence in history is based on nothing but huge leaps in logic not in the movie…

I think they should reveal Steve took alias Grant Gardner when he married Peggy to protect timeline. It’s Captain America’s name in 1940s movie serial.

 

[Mudd]

Something isn't canon just because the writers say it is.

Something isn't canon just because the directors say it is.

This is true and it's not complicated. Why do people have trouble getting it right?

Oh - to try to win arguments. I forgot.

 

[Christopher]

The movie in a humorous way says all of tv and movie tv travel theories are wrong to make their own questionable theory legitimate.

"Questionable?" Hell, no. The time travel model used by Avengers: Endgame is relatively well-grounded in what current scientific theory says about time travel (that no event can be erased from history, so there can only be either a single immutable timeline or coexisting parallel timelines), while the usual fictional model of time travelers "overwriting" history like an Etch-a-Sketch is utter fantasy and a logical impossibility. The problem is that audiences have been so conditioned to assume that the nonsense fantasy model of rewritable timelines is true that when they hear a scientifically plausible model, it sounds "questionable" to them.

Star Trek 2009 had the same problem with fans insisting that an altered timeline "had to" erase the original history rather than coexisting with it, which is exactly the opposite of what theory says. The writers made a choice to adopt a more scientifically plausible model than previous stories had used, and fans assumed it was wrong. (TV Tropes calls this "Reality is Unrealistic.")

 

[Set Harth]

The Russos didn't write Endgame's script, and the people who did - Markus and McFeeley - stated what actually happened

I suspect the Russos may have written some scenes of the film. Such a thing would not exactly be unheard of. In any event, through Banner, at one point Endgame valiantly tried to get the point across that everyone is brainwashed by movies like Back to the Future. Why bother to do that if you're just going to cave in and go back to the usual tropes by the end of the film? Specifically, when you suddenly show up in the past, it's not actually the past anymore because originally you weren't there!

The stultifying belief that any time travel must necessarily always have been part of the timeline just doesn't hold up in this instance. For example, Rhodey and Nebula going back to 2014 to get the power stone. That's not the way it happened the first time. How do we know? By watching Guardians of the Galaxy!

So I remain baffled as to why there remains confusion over this when the evidence of five separate movies supports the writers' intentions and not the directors' personal opinions.

There is actually no evidence in the other movies which supports the writers' position in any way.