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rimantas
on July 2, 2012
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Stephen Hawking on time travel, M-theory, and extr...
> we can travel at 0.1c easily
Can we? I mean as humans, not just some spacecraft. We can also sustain closed ecosystem for three generations? Last I heard an attempt to do that on Earth failed.
mkramlich
on July 2, 2012
[–]
> We can also sustain closed ecosystem for three generations? Last I heard an attempt to do that on Earth failed.
Most things fail before they succeed.
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