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> The one resource I'm not sure about is nitrogen

Good news! Nitrogen is the amine in amino acid.

Nitrogen is likely to be a limiting reagent in a lot of interesting processes in space, finding amino acids is good news but it's not clear how much nitrogen we're talking about.

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In Gundam the O'Neill colonies are less plausible than the giant robots because the huge airspaces require large amounts of inert gases such as nitrogen, argon, helium, or SF6. I find it profoundly annoying that phys.org publishes a story every week or so about how lunar colonists could make oxygen for 'breathing' which is a way to burn out and not fade away unless you have four parts of some other gas.

Large fans? Or if they are spinning, wouldn't air tend to want to stay in place while the ground moves, causing a breeze?

Ir maybe the Newtype are people that evolved to thrive in oxygen rich environment. :)

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