[shiroiushi]

I've read about many terraforming ideas such as these, and I really think they're kinda pointless, because it would probably be MUCH easier to just build O'Neal cylinders. With those, you can create artificial habitats with the exact parameters you want, instead of trying to change an entire planet so be somewhat habitable by humans.

[indoordin0saur]

The idea of living in a can floating in space, while conceptually cool, just does not seem like an appealing lifestyle to me. They also seem very fragile. One explosion, pebble-sized meteorite, failed life-support system or out of control ship could rip a hole in the structure and kill everyone on board. I'd much prefer a planet where there could be some degree of freedom.