It created an alternate timeline in which there is a universe with no Thanos or Thanos mooks, whatever they’re called. I suppose there are multiple alternate timeline now. I’ll list some, but please correct me if I miss any.
A timeline that splits around 1947 when Captain America goes back to live his life with Peggy Carter.
A timeline that splits in 2012 when Loki steals the tesseract.
A timeline that splits in 2014 when Thanos and his whole army are transported to the future.
I’m sure it’s something from the comics after I stopped reading, but how can Falcon be the new CA just by having the shield? He hasn’t been given the Super Soldier serum.
I don’t buy it. It’s just not in Steve’s personality to sit around when he knows, for example, that Bucky is being tortured and turned into an assassin by Hydra. Yeah, he knows that eventually, he’ll break free of that, but there’s no way he could just sit around while his best friend suffers unimaginably.
He “got a life” meaning that he developed a life outside of punching bad guys. That doesn’t mean he gave up on punching bad guys altogether, it just means he’s got a healthier work-life balance.
Also, he married Peggy fuckin’ Carter, SSR agent and co-founder of SHIELD. Even if Steve wanted to sit on his ass in 1950, there’s no way she’d let him.
We do not know if this timeline still exists. It is possible that Captain America fixed it after he got old and Peggy dies. After all, there was no rush for him to fix the timeline until he knew he would no longer be able to do so.
The Loki timeline probably exists because he would think it a great jest and would not make an attempt to fix it even if he new about it.
The Thanos timeline definitely exists because there was no one willing to go back and fix it.
–How does the Earth handle a sudden near-doubling of the population? How many people are now homeless, unemployed, dealing with gut-wrenching family issues (remarriage for instance)? Are we looking at mass famine? Do the lifetime-appointed members of the Supreme Court get their spots back? What about the probate issues?
–Apparently Peter Parker is back in high school, and all his friends are there too? How does that work? What are the odds against all of them being “snaptured”?
One interesting thing that the movie doesn’t get into: during the five year time skip, some of the people who lost people to the snap are going to have died. Then, when their loved ones return, they experience almost a kind of mini-snap. One minute they’re fine, then it’s suddenly five years later and their wife is dead.
Well, it’s a 50% chance that any given individual gets snaptured. Peter’s social group includes him, Ned, MJ, Flash, and maybe two other significant characters (half guessing here, based on memories of seeing Homecoming the one time). My math skills are generally sucky, but I believe that works out to about a 1 in 64 chance that all of them disappeared. Which is unlikely, but not exactly astronomical.
One further thought on Cap living a full life in the past. Maybe he realized that he absolutely positively could not get into hydra/heroing/world-changing-events etc. So maybe he founded a local chapter of habitat for humanity and marched in civil rights marches and so forth. There’s more than one set of problems that a hero can address himself to.
It would be hard for him to not try to prevent the catasrophes he knows are coming… but hard isn’t impossible.
I don’t know if it has been mentioned here yet, but there’s been a bit of speculation by fans that the prinicipal of Peter’s school at the end is Ben Mendelsohn. From what I can find there’s no confirmation that it was in fact him, but interesting if true. Could mean more stories of the skrulls in the present.
EDIT: I found a screenshot. It’s blurry so can’t say for certain either way, but I’m thinking it’s very unlikely. Just fans trying to find easter eggs wherever they can. Would love to be wrong.
I think one can at least debate the ethics of actually changing anything in the past. Let’s say Cap saves Bucky, but in doing so, proverbial butterflies flapping their wings, prevents the creation of the Avengers, and Earth is obliterated by Loki’s forces (or whatever unknown threat may occur). Plus, after having changed something, his foreknowledge is going to be unreliable, at least; you can’t save Bucky and expect that the infiltration of SHIELD by Hydra is going to take place in the same way.
So Cap is faced with some tough questions:
[ol]
[li]When do I have the right to create a new timeline?[/li][li]Am I confident that righting some wrong now does not lead to greater wrong down the road?[/li][li]Which wrong is great enough to be righted—do I prevent, say, Kennedy’s death, accepting the possibility that I won’t be able to stop Hydra, because they’re going about it differently than they did in my timeline?[/li][/ol]
The first one is more hairy than one might think. Does the suffering in the world outweigh the pleasure? If so, then a simple utilitarian calculation would suggest that it’s actually morally wrong to bring into being new copies of people who will experience suffering, since you’ve thereby increased the total suffering in the world (‘multiverse’).
The other two essentially highlight the issue that the timeline isn’t going to stay congruent with what he knows once he starts changing stuff. People seem to think about this as if he could just fix every disaster of the past fifty years, but that’s not how it works—any change he introduces could lead to a timeline wildly different from what he remembers. Save Kennedy, and the Cold War turns hot, with near-term nuclear armageddon.
With all that, I think one can easily argue that it’s reasonable to keep out of large-scale events in the past—actually, more than reasonable, heroic: sacrificing his inborn drive to right wrongs for the greater good. So I really see no reason to believe that that’s not just what he did.