Re: Modular versus non-modular
> But are there things that might want to be put in orbit that can't be modular (because eg either the underlying structure is too big, or assembly in orbit isn't practical because of the complexity)?
I can't think of anything, but then I'm no expert. It's fun to think about though. In some ways joining two large structures might be easier in microgravity - no overhead gantry is required!