Yeah OK, but lets say for example I need some aluminium rods for my spiffy new spaceship on orbit, and there is aluminium ore on the moon. What's easier, send up those finished rods from the Earth or send up a frigging foundry and its power plant - which powers on what?- to transform the ore? At this point mining the moon appears to be science fiction to me, except maybe for exceedingly rare and useful raw materials...
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