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Hyper-Advanced Extraterrestial Civilisations
29 Dec, 2007 | CATEGORY: Extaterrestial Life| SOURCE: COSMOS
Some heady discussion about hyper-advanced civilisations. Learn about Type I, II and III civilisations. I particularly like this article for this quote from Carl Sagan:
"What does it mean for a civilisation to be a million years old? We have had radio telescopes and spaceships for a few decades; our technical civilisation is a few hundred years old .."
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