[ExI] Old Chemically Mature Galaxies and Fermi Paradox
Eugen Leitl
eugen at leitl.org
Sat Nov 5 18:15:19 UTC 2011
On Sat, Nov 05, 2011 at 07:19:14AM -0700, The Avantguardian wrote:
> Although I do admit gamma ray bursts suck when they are pointed your way,
> why would that pose a threat to shielded machine-phase life?
They don't. We're looking at preexpansive life, which is
terribly fragile.
> I think a more elegant solution is that no sufficiently intelligent
> species would waste the energy communicating at interstellar distance
> using a spherical wave. Unless the species is so succesful, widespread,
It's not wasted if it's a spherical wavefront of individuals.
> and energy abundant that it is more economical for them to communicate
> by spherical wave rather than by one or more directed tight- beam
> masers or modulated IR lasers, or something similar. Maybe once
> "I Love Lucy" reaches them, the will send a greeting to Lucille
> Ball or some such. In any case, GRBs are a selling point for
> uploading that I never considered before.
Machine-phase has many selling points. Being harder to kill is one
of them.
--
Eugen* Leitl <a href="http://leitl.org">leitl</a> http://leitl.org
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