From: Eugene Leitl (eugene.leitl@lrz.uni-muenchen.de)
Date: Thu Jul 22 1999 - 23:41:38 MDT
Alintelbot@aol.com writes:
> Assuming that the possibility of finding extraterrestrial artifacts on other
> bodies in our solar system isn't a lunatic notion, what sort of things
> _should_ we be looking for?
I don't think a civilisation capable of interstellar travel is going
to engage in building megalithic structures on planetary surfaces. As
far as we know interstellar travel requires micro craft built with
nanotechnological means. Shortly after arrival it autoamplifies into a
vast machine ecology living in space as their native habitat. There is
no point for them to descend down the gravitational gradient for
purposes other than large-scale mining (leading eventually to
planetary deconstruction).
It is impossible to destroy such a supercivilisation by anything other
than a grand cataclysm (say, a GRB event occuring almost in the
system), which will certaily leave tell-tale traces everywhere.
If you're looking for alien artifacts in our Solar System you won't
find any unless
1) the aliens deliberately drop camouflage
2) the aliens emerged in this planetary system and didn't have the
time to evolve into a superciv yet -- in this case the aliens are us.
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