“On your left” was a high point for me too.
I felt like that scene had a couple logical ways to play out, and they opted to cheat to hit the story beat of passing on the shield to Sam.
As Cap is getting onto the platform, they’ve just explained how he’ll only be gone for about 5 seconds, and Cap and Sam exchange “good luck” or whatever, and there’s a slightly more meaningful exchange with Bucky (including the “you’re taking all the stupid with you” callback) that ends with Bucky saying he’ll miss Cap.
So what I was expecting to happen was Cap to jump into the past, we count down five seconds, Sam and Hulk freak out that he’s not back, and Bucky is all knowingly like “he’s not coming back, he’s where he’s supposed to be” or something.
That would’ve been great.
Also great would’ve been Cap reappears as expected, but he’s an old man. That would’ve still worked with the movie’s time travel logic, but been a little clunkier.
So yes, I think the implication of the scene if you think it through as it was shown on screen is that time travel worked differently here, and Cap really did jump back to “our” past, not a different branch of the timeline created by his jump. And that definitely breaks the rules as established in the movie. So it’s a cheat.
I’ll allow it.
Also, based on the time travel as it’s explained when they’re not cheating, they didn’t give Loki an out. The Loki that grabbed the Tesseract and vanished was also in another branch of the timeline. He might be off making mischief in that timeline, but not ours.
Anyway, I loved this. I got some predictions half right, a lot wrong, but I did randomly pick Natasha as a likely death in a “dead pool” with some friends. So there’s that.