Every time I say we are headed towards an Elysium-like world, it gets downvoted pretty quickly. Yet all signs are pointed to that trajectory! The rich are getting richer, they live in essentially their own world already--they're buying islands and building fortresses. They are more and more just selling to each other because the rest of us are essentially irrelevant to commerce. It's reasonable to assume we are moving towards a society where a mere 1-10M or so people live walled-off somewhere in luxury (not necessarily a space station) while the remaining 8B people are economically irrelevant, scraping by in the periphery.