I don't see this discussed in-group recently; refer me if I missed it.
In a crossposted thread, it was mentined
From: Joe Strout
Message-ID:
I have a design I've slowly been fleshing out for a habitat of 2000
people (about 2/3 of whom would be tourists at any given point in
time), and I wouldn't be surprised to see something like that within
30 years. I'm obviously assuming here that progress in the next 30
years will be substantially faster than in the last 30 -- but there
are lots of good reasons for thinking that may be the case.
What are a few of these reasons?
Wayne Throop
http://sheol.org/throopw