[extropy-chat] Dark matter and ET

[Lifespan Pharma Inc.]

Perhaps the universe we see is a zoo or conservation/ecological  
preserve to enshrine the past and  remind
an ancient cosmological civilization of its  roots???



Robin Hanson wrote:

> At 08:22 PM 7/14/2005, Dan Clemmensen wrote:
>
>> 1)  Dark matter: We have not been able to detect by other means 
>> enough matter
>>     to account for all of the gravitational effect we see in the cosmos.
>> 2)  The Fermi Paradox: Why have we not detected signs of other 
>> intelligent life in
>>      the cosmos?
>> Perhaps these questions answer each other. ... most SI might evolve 
>> to efficient computronium. What is efficient computronium, and what 
>> is its emission signature? If it is difficult to detect, it may 
>> comprise the missing mass.
>> def: computronium: matter organized to optimize computing capacity.
>> def: efficient computronium: computronium organized to optimize 
>> computations per Joule.
>> Does anyone have references to prior speculation on this topic?
>
>
> Robert Bradbury has posted on this topic many times on this list over 
> the years.  I've often played the role of critic in responding to 
> him.  It is a subtle question what exactly the goals of alien 
> civilizations would be, and different goals lead to different 
> computational priorities.  Also, there is the question of why such 
> aliens are not trying to make use of all the stuff that we do see.
>
>
>
> Robin Hanson  rhanson at gmu.edu  http://hanson.gmu.edu
> Associate Professor of Economics, George Mason University
> MSN 1D3, Carow Hall, Fairfax VA 22030-4444
> 703-993-2326  FAX: 703-993-2323
>
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