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I heard there might be interesting stuff happening with the metals though. They are self-conscious and stuff?

The jury’s out on that metaphysically speaking, but even if so that’s a rounding error of the rounding error. This handy chart breaking down the universe by subject area is a useful guide.

https://www.explainxkcd.com/wiki/index.php/2640:_The_Univers...

Wait, the metal talks? And it thinks with its metal?

the metal sings! they can sing by squirting air through their metal!

It's really metal through their metal

They're Made of Meat -> They're Made of Metal: way cooler

Yes, they are pretty self-conscious. E.g. gold constantly thinks she's looking too yellow.

Actually, I've heard it called just "Hydrogen and Dirty Hydrogen"

The universe is a zeppelin

Not a led zeppelin though

But a metal zeppelin

Hydrogen is a metal? You must be a very early universe astrophysicist