Re:The Great Filter – Are We Almost Past It? (1998)
by jeremyjh on Sunday April 05, 2015 @03:31PM
(#9325053)
We're only talking about what we can observe. Just a few dozen billions of stars. That is sufficient for the Fermi paradox.
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Re:The Great Filter – Are We Almost Past It? (1998)
by Mahn on Sunday April 05, 2015 @03:45PM
(#9325102)
> That is sufficient for the Fermi paradox.
Is it? How do we know it is?
Re:The Great Filter – Are We Almost Past It? (1998)
by taygetea on Sunday April 05, 2015 @04:12PM
(#9325173)
The terms we know in the Drake equation make it very difficult to say it is unlikely for intelligence to arise more than once. ~100 billion stars * ~100 billion galaxies in the observable universe. Exoplanet surveys seem to be suggesting at least one planet per star on average. In addition, chemical self replication seems to happen fairly easily given the right chemical conditions, which don't appear to require much more than liquid water.