[allannienhuis]

I like the idea - why waste all that energy going up and down, and missing out on swimming in zero g? :)

But rotating space habitats might not be as good at replacing gravity as some think. Even with the really-huge 'O'Niell cylinder' scale (8 kilometers diameter), coriolis effects would be noticeable. I suspect a number of industrial processes would be affected by it.

I expect some of the major industrial processes will still need/want to be done on a big pile of rock or sand, rather than in a more fragile object that inherently wants to explode and fling apart all the time :).