Derrickson said on Twitter that Benedict Cumberbatch improvised the scene where Doctor Strange raises one finger to Tony Stark/Iron Man, a signal that this was the one moment and one possibility that could end the fight against Thanos.
As devastating as Iron Man's death in Avengers: Endgame was, it had to be done. Doctor Strange signaled to Tony that this was the one future that permitted victory out of 14,000,605 possibilities the Sorcerer Supreme saw in Avengers: Infinity War.
He raised one finger to remind Tony Stark that there was just one way to defeat Thanos. The implication was that this one way was now at a critical point and it required Stark doing something in particular that Strange could not reveal to him, since that information might cause Stark doing something else instead.
Did Doctor Strange know what would happen in Endgame?
For instance, Iron Man's death in Avengers: Endgame seems to be an “absolute point” - a moment in time that can't be avoided by any means - as Doctor Strange looked into the future and saw 14,000,604 scenarios where Tony Stark's death and the Avengers' victory against Thanos were mutually exclusive.
He GAVE UP the Time Stone to save Stark, because he knew the one outcome he saw where the good guys won absolutely depended on Stark being there. And as for Wanda, she wasn't “about to destroy” the Time Stone. It was the Mind Stone in Vision's head that she destroyed.
Strange wasn't asking for Tony's life to be spared out of any sense of camaraderie; he was trying to ensure that Tony would be around to save everyone, himself included. The only problem with his plan is that, according to Thanos, the beauty of his vision was that it was inherently random.
Who did Tony Stark see when he snapped his fingers?
After Tony snaps his fingers while wearing the Iron Gauntlet, he's transported to a mysterious place. As he tries to gather what's going on, he hears a voice call out to him. Tony turns around to see a grown-up version of Morgan, played by Langford. Tony quickly realizes the young woman is his daughter.
On Earth, the Snap led to a five-year period in which the world fell into societal collapse and many countries abandoned their national borders. In 2023, the victims of the Snap were resurrected by the Avengers, after they went back in time to alternate timelines to acquire their own set of Infinity Stones.
The Hulk saw an alternate reality when he snapped his fingers: In the first vision, the Hulk saw the Russo brothers logically following the battle arena theme from Ragnarock into Infinity War and Endgame.
Yes Strange signals by holding up one finger to Stark saying it IS the only chance where they win and he has to snap his fingers this time. But we have to realize, the moment Doctor Strange shows up his finger, Tony still doesn't have the gauntlet neither the stones.
Because none of those timelines happened. When Doctor Strange looked into the future he saw potential 14,000,605 timelines. In all of these save one Thanos wins.
Tony talked about Doctor Strange, whom he dubbed "Bleecker Street Magician," giving out the Time Stone to save his life. The nickname came from the address of the Sanctum Sanctorum, which is the wizard's residence. Tony knew about this having visited the place at the start of Avengers: Infinity War.
In Avengers: Infinity War, Thanos and Iron Man have their long-awaited one-on-one battle that quite literally decided the fate of the entire universe. When Iron Man was beaten, Thanos tells Stark that he has his respect, and that he hopes Iron Man will be remembered after Thanos succeeds in his twisted mission.
According to. “He's aware of Stark from the original Battle of New York as the person who undid the plan,” said Russo about Thanos knowing Stark. The makers also explained the connection between Stark and Thanos in regards to what they want to achieve: a path for a better future.
Given time, Tony could have found a more dramatic way to get the job done, but a snap was the best quick solution. Tony Stark probably just wished for Thanos' army to fade to dust.
Originally Answered: Why are the original Avengers alive after the "Thanos snap"? Do you want the in-story reason or the out of story reason? In-story, it was luck. Everyone had a 50% chance of surviving the snap, and our main characters happened to get lucky.
What would actually happen if Thanos snapped in real life?
The erasure of half of the population of ALL populations means that the ecosystems of earth will start collapsing all over the world. This is not a world ending event, and indeed, from a paleontologists view from the future, it will be impossible to see what exactly happened.
Note that all the members of the original Avengers team — Iron Man, Captain America, Thor, Hulk, Black Widow and Hawkeye — survived Thanos' attack. Presumably they will unite one last time in Avengers: Endgame to reverse the curse.
While it is true that people like Gamora and Valkyrie missed his funeral, there is another important one a lot of people fail to mention: Phil Coulson.
In Avengers: Endgame, would Tony have survived if he had not taken so much time saying "And I am Iron Man" before snapping his finger? No. While the time he took wasn't helping, the actual snap would have killed him no matter what.
When Tony Stark was dying, why didn't Dr Strange use his sling ring to send Tony Stark to a hospital? Because there wasnt a single hospital in the universe that could heal the sheer amount of damage the stones did to Tony's entirely human body.
This symbolizes that despite their ugly history, Wanda eventually viewed Tony Stark as a hero for her to mimic his winning tactic against the Mad Titan.
Strange doesn't know about thanos in infinity war because he can looking forward in time with the time stone and had the chance to gain the knowledge of his existence before the hulk broke in the sanctum santorum.
