re: #42 Naso Tang
On the moon you would weigh less than 20% of earth weight. We know that weightlessness is bad long term due to bone mass loss. We don’t know if 20% (without special effort at exercising) would be enough to stabilize at some point.
It might be a good idea to find that out before setting up a 51st state with thousands of people./
As to space, it is not technically difficult to have a long term space station with centrifugal gravity, like in the movie 2001 and others. We just haven’t gotten that far to need it yet.
We could tear a page from Heinlein and make the moon a penal colony.