system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] How does Star Lord's helmet work, and what would happen if Tony Stark got his hands on it?
gpt
One of two things.  Either it would catapult mankind forward in technological development, or it would be so advanced that it was literally useless.

The way we know this is the miniaturization technology.  It's not just that the mask can just pack itself into a space it can't fit into... it's that they used it in what's a pretty ordinary space mask.  It's basically an emergency mask for life support if you lose pressurization.  

Let me compare.  Imagine you took a modern car back to the 1950s or something and explained "well, it's more or less like your cars... but it can parallel park itself by pressing a button."  

That one fact indicates a revolution in technology that's obscene.  Miniaturized cameras.  Transistors.  Computing.  All these things needed, to make a button do what any kid just passing their driver's test can do.  But seeing that one feature casually tossed on a car indicates that the technology not only exists, it's trivial.

In the same way, Star Lord's mask is going to contain components that are simply high tech beyond Stark's wildest dreams.  Not just technology that's experimental, but technology beyond his, mass produced and distributed in these fairly ordinary masks.  

How does it work?  Nanotechnology?  Spacial anomalies?  Who knows.  But the tech is wildly beyond what Tony knows, and in the hands of Tony Stark would be... something.