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From: john larkin <jlarkin_highland_tech>
Newsgroups: sci.electronics.design
Subject: Re: Expedition to Europa
Date: Sat, 29 Jun 2024 11:26:56 -0700
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On Sat, 29 Jun 2024 11:35:47 -0400, Joe Gwinn <joegwinn@comcast.net>
wrote:

>On Sat, 29 Jun 2024 04:04:11 -0700, Don Y
><blockedofcourse@foo.invalid> wrote:
>
>>On 6/28/2024 10:08 PM, bitrex wrote:
>>> On 6/27/2024 5:17 PM, Don Y wrote:
>>> 
>>>>> Most big librarys carry AW.
>>>>>
>>>>> .<https://europa.nasa.gov/mission/about/>
>>>>>
>>>>> If it turns out that there is life in the ocean of Europa, which has
>>>>> existed for something like four billion years, it supports the general
>>>>> idea of "random but inevitable" theories of Abiogenesis.
>>>>
>>>> _Remembrance of Earth's Past_ has an interesting take on the whole
>>>> notion behind an "empty" universe.  It's a tedious read (mainly for
>>>> me coming from a non-chinese culture... just keeping track of the
>>>> characters is difficult) but has some good ideas to chew on at its core.
>>> 
>>> My guess: The Universe is mammoth, the technological and energy requirements of 
>>> even short-distance interstellar travel are immense, the lifespan of 
>>> technological civilizations is highly time-limited before such a civilization 
>>> destroys itself, technological civilizations are very rare to begin with, and 
>>> no technological civilization ever survives long enough to attempt it.
>>
>>That wouldn't explain why there are no *signs* of intelligent life.
>>
>>*We* can't (yet) travel interstellar distances in single lifetimes
>>but I'm sure anyone with technology comparable to ours would be able to
>>*detect* our presence (given that we seem to make no attempt at "hiding")
>>
>>_If the Universe Is Teeming with Aliens ... WHERE IS EVERYBODY?_ gives some
>>interesting takes on the Fermi paradox.
>
>That's a bit self-important.  
>
>If the universe is teaming with life, but alien civilizations capable
>of interstellar travel are exceedingly rare, there would be little
>reason for those spacefaring aliens to visit any but the other
>advanced alien civilizations.  
>
>We might get the equivalent of an anthropologist ever few million
>year, and they would do whatever needed to prevent detection by that
>which they study.
>
>Joe Gwinn

An intelligent alien lifeform is probably thousands of light-years
away. Unless they have a Warp Drive, there's no way they would want to
visit us.

A very advanced robot might.