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philosophus
on June 6, 2014
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A sealed bottle garden thriving after 40 years wit...
Maybe I'm being nit-picky, but it's not "entirely self-sufficient," as it still needs light from an external source.
mabhatter
on June 6, 2014
[–]
Earth isn't entirely self sufficient and needs light from an external source....
It's working in the same constraints the origins ed evolved for... Just smaller
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