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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.