“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.
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!
I’d say humans are <100 years from atomic level designer materials. Specificy the properties you want, a quantum computer figures out the optimal atomic composition and then a “printer” drags atoms intro the right place. I’d guess any sufficiently advanced civ has these 🧐🤞🙏
The two camps are
1. Use progressively better tip-based techniques (a la scanning tunneling microscopes)
2. Use progressively better bio-based printers.
My hypothesis is that a better path takes pieces from both (but I don't have a good answer for which pieces those are yet.)