Seriously, 30-40 years ago I would have eagerly agreed with you. Much as I continue to like technology and feel optimistic about it overall, I greatly doubt that a century from now there will be any non-military space colonies in existence; long term existence is more likely to exist in silico than for biological bodies. One major influence on my thinking about this is the fact that we landed people on the Moon from 1969 to 1972 and then just gave up on it for 50 years. Now in middle age, I cannot overstate my sense of betrayal by earlier generations that decided to devote themselves to financial engineering instead.

You could be right though, haha. I felt exactly the same way when I was growing up in the 80s and 90s. Space was dead, there's no future, etc etc