People quite regularly notice that I do use energy metrics and ignore economic realities in my assumptions. There are few good reasons for that. And let’s consider some aspects on an example of the problem of using smart matter on a large scale for megastructures like space lifts or other stuff. A point about economics … More Smart matter, Q2, economics vs energy and other animals
The document of NASA is interesting in terms that those guys have considered the problem of collecting regolith and moving it to a central location. It is the same problem, and one of the tasks for tech seed on the moon surface, to collect regolith and deliver it to processing unit, thus it is interesting … More Plan0 vs NASA plan.