More than a decade later,Avengers: Endgamepromised a conclusion of sorts.
“I am inevitable,” Thanos said, after grappling with the hero and tossing him aside.
But when the Titan snapped his fingers, he found his Infinity Gauntlet empty of gems.

But it came with a price.
The explosion of energy left him badly burned and fatally wounded.
In some ways, it seemed like a natural choice.

Stark had gone from aloof arms dealer to someone who repeatedly risked his own life to spare others.
Tony Stark has always struggled with the question of whether he was worthy.
On screen and off, Downey showed the world redemption through the lens of fantasy.

The Man in the Machine
Downey has never shied away from his history.
Both men didn’t like who they were, and both decided to change for the better.
“I’m just a fing actor.
“I think that that translates.”
Eventually, it was going to end in something he couldn’t walk away from.
This is why Thanos knows who this puny human is inInfinity War.
Stark had already made a lot of trouble for him.
Stark is formidable not because his heart is pure, but because it has been damaged.
And rebuilt to be stronger.