Re: Terraforming the Solar System
Sea-steadings will likely materialize ages before anyone bothers to colonize an extraterrestrial body, and I'm not holding my breath for those. If Anatarctica or Greenland become sufficiently ice free, you might see people colonize those regions.
Elbow room, BTW, is not really an issue. There's plenty of room on Earth. We could all fit in Texas. The big issues are infrastructure , technology, economic development, and resource use as it relates to population. A fraction of the resources needed to terraform other planets could be used to render uninhabitable regions of the globe into verdant lands, to reclaim or build up land as the Dutch have done, to create megacities, and so on.
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