That's the most important part I think, hydrogen and helium make up 98% of the universe as they were produced immediately after the big bang, all other elements matter much less.

There's also the fact that the chemical behaviour of an element does not matter much at the temperatures encountered in stars - the properties we expect of a metal, for example, actually depend on the atoms being cool enough to stick together. If you heat up iron to 3000°C it stops being a metal and just behaves like any other dense, hot gas. But since hydrogen and helium are so much lighter than other elements they will still have different behaviour at such temperatures (for example, they rise to the surface of a star)

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You are correct. A salt is an ionic compound (and technically not a molecule at all), and there are many salts other that sodium chloride: potassium chloride, potassium hydroxide, sodium hydroxide, calcium carbonate, etc.

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Is salt indicated by absorption spectra in the dust?

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I know you didn't just try and say different ethnic and cultural groups of people are different species from one another.

They're not. Every human on Earth alive today is of the same species : Homo sapien.

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Absolutely fascinating, thanks for commenting. One thing: NaCl is not a molecule, right? There is not a single NaCl molecule on earth, just the ionic compound. Or is this different in space?

In practice you focus beams of electromagnetic radiation to collide with each other. You can't reach fields anywhere close to the Schwinger limit with charged walls, so again, this has nothing to do with walls.

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Look up Dr. György Tarczay or Astrochemistry in general!

There is a whole field of science about studying molecules in space and proving they exist by replicating astronomic conditions in a lab.

I got to tour Dr. Tarczay's lab and it was super impressice. Look up Tarczay VIZSLA for an article about his latest piece of equipment.

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96bit audio might potentially have some scientific applications? The requirements for measurements in experiments like LHC are quite extreme.

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Nah metallic salts are the thing. Sodium chloride, potassium chloride, lithium bromide not all good on fries though

OP is asking about the Schwinger limit. This has nothing to do with walls.

This is just a popular science myth. It's not an actual physical process.