From: Kentaro Mori <kentaro.mori.nul>
Date: Mon, 21 May 2012 10:09:22 -0300
Archived: Tue, 22 May 2012 08:30:47 -0400
Subject: Re: Problems With von Neumann Replicators


>From: Robert Powell <rpowell.nul>
>To: post.nul
>Date: Sun, 20 May 2012 16:24:43 -0500
>Subject: Re: Problems With von Neumann Replicators

>>From: Kentaro Mori<kentaro.mori.nul>
>>Date: Fri, 18 May 2012 14:56:21 -0300
>>To: post.nul
>>Subject: Re: Problems With von Neumann Replicators

>>That's Fermi's Paradox. It was formulated almost as soon as
>>advances in cosmology established the Universe is billions of
>>years old, and that there are billions and billions of galaxies
>>as large or even larger than ours.

>>http://tinyurl.com/2hg2qn

<snip>

>>the fact we cannot see any obvious signs
>>of intelligente life in the Universe elsewhere - besides the
>>'controversial' UFO evidence - must mean they are either
>>deliberately hiding or that they don't exist.

>Kentori, why is "they are deliberately hiding" not a reasonable
>hypothesis?

Simply stated, because they must _all_, without exception, be
deliberately hiding. A single civilization with a colonization
program for the Galaxy could be present in all solar systems and
engineer its structure and much more in a few million years. Even
if all others do not choose this path, it just takes one in the
whole history of our Galaxy to do the job. And yet, we cannot see
clear evidence of that. This question is the problem for mostly
all answers to Fermi's paradox.

Of course, it may well be that however "unreasonable", by simple
chance or by some yet unknown reason (the Great Filter) none of
the civilizations in the Universe embarked on such project, and
that they are all "hiding". One certainly can assume such a
solution and this may well be the case, but it's as "reasonable"
as any other - including the one that we are indeed alone.

All answers are problematic, and the paradox stands, I think
there's no shame in recognizing we simply don't know the answer
to Fermi's question. We are not alone, the Universe is much too
large and too old for we to be the only ones, but then where are
they?

Fermi's paradox is one of the strongest arguments for the ETH and
the PaleoSETI, though it's often misunderstood and even derided
by most proponents of such hypothesis.


Kentaro



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