But less and less is launched per pound of space-produced product as time goes on, until only rare complex (small) components such as microprocessors come from

But less and less is launched per pound of space-produced product as time goes on, until only rare complex (small) components such as microprocessors come from earth. There will be an industrial chain taking aluminum from lunar regolith that's catapulted out to a Lagrange point and then the raw aluminum or printed products will be lowered to more suitable orbits by ion engines that spit out ions from lunar soil. Hate to be the one to mention it, but the military may well be paying most of the freight to set most of this up (covertly or not) since space based you-name-it including hypersonic projectiles are going to be more and more useful as the decades pass.