With the right level of technology, Iron Man's suit could be real. To put it simply, the Iron Man suit is an armored exoskeleton that is equipped with both mechanical and electronic components.
To get the suit to fly, Stark would need to create a thrust of at least 8,700 N to get off the ground. Big engines on aeroplanes can generate thrusts of hundreds of kilonewtons, which would easily get the suit to fly. However, those engines are huge, and would be difficult for the wearer to control the suit in flight.
In aesthetic terms, War Machine is the closest match to Iron Man already in the MCU. As well as being Tony Stark's best friend, James Rhodes was the first person Stark trusted with his own suit of armor, and continued to fight alongside Iron Man across multiple movies.
A far more feasible method of survival—and another one that stems from the comics—involves Tony's own inventions. Tony could have invented an AI version of himself that would have survived his physical death. This actually happens in the comics, and AI Tony acts as the assistant for his protege, Riri Williams.
The famed comic book character Iron Man aka Tony Stark was inspired by another real life billionaire, inventor, philanthropist and aviation enthusiast - Howard Hughes. The two not only shared the same interests but shared a ton of similarities. It is also no coincidence that Tony's father is named Howard.
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Is vibranium real?
Vibranium is Not Real
Vibranium was created by Marvel comics in 1966, first appearing in Daredevil #13. Originally shrouded in mystery, the fictional metal was fleshed out across various comic lines over the next few years. Vibranium is actually an alien metal that crashed to earth, hence its fantastical properties.
The concept of the arc reactor doesn't work in real life because it violates the Law of Conservation of Energy. Energy can't be created or destroyed, only transferred. The arc reactors in the MCU are essentially perpetual motion machines, which don't work. Instead, this arc reactor is powered by a 3.7V LiPo battery.
In 1974's Avengers #122 by Steve Englehart, Bob Brown, and Mike Esposito, Iron Man lifted Mjolnir in outer space, but once he neared Earth's gravity field, his hand was pinned. This proved anyone could wield Thor's hammer where there is no gravity.
Mjolnir has been manipulated in different ways in Marvel Comics, and many years ago, Iron Man was able to hold the hammer… thanks to zero gravity, meaning that he didn't properly lift it and he would have still not been able to wield it on Earth because he wasn't worthy.
In the former movie, it was likely Tony's narcissism and lack of humility that contributed to his “unworthiness.” These attributes did, however, make him a hero. After saving the world, making a play to sacrifice himself, and defeating Thanos' army, he was not able to lift Mjolnir in Age of Ultron.
Summary. Rhodey, aka War Machine, is confirmed as the ideal replacement for Iron Man in the upcoming Armor Wars, as his characterization now mirrors Stark's. Rhodey's reveal as a Skrull impostor adds a layer of trauma and parallel to Tony Stark's origin story, making him a compelling successor to Iron Man.
Several other actors, including Tom Cruise, Nicholas Cage, and Hugh Jackman, were considered for the role of Iron Man. Other potential candidates for Iron Man included Timothy Olyphant, Matthew McConaughey, Leonardo DiCaprio, Sam Rockwell, Johnny Depp, Jon Hamm, and Rob Lowe.
From start to finish, however, from Captain America: The First Avenger to Avengers: Endgame, Rogers proved he was worthy with the strength of his ideals, the unflinching dedication to doing what was right, regardless of the consequences, and his steadfast dedication to the one thing he was dedicated to the most; people ...
While the primary Thanos from Earth-616's universe was defeated and was never worthy to lift Mjolnir, it's possible that a future (or existing) variant of Thanos could.
Jarvis doesn't lift Thor's Hammer. Jarvis is an AI. Vision lifts Thor's Hammer. Vision is still very new, freshly created, and hasn't done anything yet that would not make him worthy.
It wasn't until 2016's Unworthy Thor #5, by Jason Aaron, Olivier Coipel, Kim Jacinto and Pascal Alixe, that Thor finally revealed that the words Fury had said to him were simply, "Gorr was right."
In the Iron Man 2 novelization, as well as in the junior novelization, the element created by Tony Stark to replace palladium in the Arc Reactor is called vibranium.
The new Arc reactor uses a Palladium Core inside which is burned during prolong use of the Ironman suit which sends particles of Palladium into Tony's body causing Palladium poisoning.
There is currently no accepted theoretical model that would allow cold fusion to occur. In 1989, two electrochemists, Martin Fleischmann and Stanley Pons, reported that their apparatus had produced anomalous heat ("excess heat") of a magnitude they asserted would defy explanation except in terms of nuclear processes.
