"Rich S." wrote:

Unless you can figger out some way to keep humans from breeding like
lemmings, the only other alternative for survival is more real estate.
"Incredibly few people"? This is the most important thing for the future of
us ALL.

We already know the answer. People in prosperous countries don't even have
enough children to keep up with the natural death rate. When the world wide
standard of living is high enough, the population will start to decrease. Oops.
Better think wbout selling that real estate before the surplus hits.

The only thing that will lead to colonizing space (other than some unforseen
"When Worlds Collide" scenario) is productivity so high that groups of like
minded people can afford to do it on their own.

-- Charlie Springer