system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] Why isn’t Interstellar travel being worked on?

I have hard time believing that this wouldn’t be #1 on the governments list of priorities.
gpt
It is, the guardians of the galaxy already have it.

Joke answer out of the way, it probably still is being worked on, but the first problem to be sussed out is getting out of the solar system in the first place. The wheels of science grind slow, with the exception of those Tony Stark types (shaking fist at sky).