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Step one: Buy some land in Northern or Central Argentina. Out of my price range now, but not unthinkable that I could get 1-200,000 USD in the next 10 years. It all starts with intention.
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Sure, that sounds awesome. What's stopping us building a town like the Ewoks, or even Avatar?

http://www.sciencealert.com/this-dutch-town-will-grow-its-own-food-live-off-grid-and-handle-its-own-waste

This idea may not be perfect, but at least we're starting to talk about the subject. Maybe...