“Would aliens also have X?” for almost any X tickles the brain a lot.
The X that primed it for me just now (again) is stainless steel, but almost any generalization of it works.
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Does feel like the right way to rate the progress of a species is material technology!
Alien species prob relied on stainless steel during a brief phase of their existence? Humans have only had it for a small fraction and will likely move beyond it in time?
Great material tho!
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Will we though? We still use rocks and wood even though we have concrete and steel.