Liquid rock is an important part of the frontier below our feet. Tapping into it will be a very big breakthrough. http://unenumerated.blogspot.com/2011/02/some-speculations-on-frontier-below-our.html …https://twitter.com/NickSzabo4/status/789508086205603840 …
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variability of mass immigration not modelled. New revolution always possible (e.g. post-scarcity). Distribution will be uneven.
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