Harmonian wrote...
I disagree.
How would we monitor these space colonies? What stops them from becoming their own independent nation?
How would we police them?
Colonies would be policed the same way as states. Look at the United States - it's huge, with a lot of different states, but none of them are going to secede and become their own nation.
If we had colonies in space, we'd definitely have an easy way to go from the earth to space. Otherwise, there'd be no way to move the large populations necessary to run an entire colony. So, if the citizens of a colony started acting up, the mother country of the colony would go and sort things out. Just like the US would do if Hawaii went crazy and wanted to secede.
I'm all for colonization. I'd love to live in space. It won't happen any time soon though. I still hold out a little bit of hope that it'll happen in my lifetime, or at least get started in my lifetime, but I don't know for sure. My desires aside, the human race will need to venture out into space eventually. Far, far in the future, the sun will go out, and if humans are still around by then, we'll need some way to get out of this solar system. Not quite that far in the future, but still plenty far, mankind could be wiped out by all kinds of things, from man-made disasters to rampant and uncontrollable disease. Entropy cannot be stopped, and if mankind wants to live as long as possible, we must eventually take to the stars.