system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU - Avengers] What would've happened if Natasha closed the wormhole too early and Tony didn't make it back to Earth?

In the acclaimed documentary, Tony made it in the Nick of time (heh) out of the wormhole.

But what if Cap told Natasha to close the wormhole a bit faster and Tony wouldn't have made it back to Earth (and thus died in an ego-boosting Viking funeral in outer space)?

How will the world have gone on? What about the Avengers? What about the future threats, like Hydra's infiltration of SHIELD and Ultron?
gpt
The rest of the Avengers do okay.

Ultron was something that Tony let loose. Without Tony creating the Ultron project with Banner, Ultron does not exist, and by proxy, neither does Vision.

Tony had nothing to do with Hydra's infiltration of SHIELD. Cap and Nat were the ones who dealt with that.