On Wednesday, February 7, 2018 at 6:27:39 PM UTC-6, Brent wrote:
> On 2/7/2018 4:38 AM, Telmo Menezes wrote: 
> > To summarize the argument: 
> > 
> > 1. A sufficiently advanced civilization is bound to become a galactic 
> > civilization; 
> > 2. We do not observe a galactic civilization; 
> > 3. If other instances of life are found, this means that life is not so 
> rare; 
> > 4. So it is likely that there is a major obstacle that prevents a 
> > civilization from becoming galactic, and this filter is likely to be 
> > ahead of us. 
> > 
> > It's an interesting argument but I think it is based on some rather 
> > strong assumptions: 
> > 
> > (a) That becoming a galactic civilization is possible; 
> > (b) That becoming a galactic civilization is desirable; 
> > (c) That galactic civilizations are observable by us. 
> > 
> > Firstly we don't know if there's an upper limit for technological 
> > progress, or where that limit could be. Maybe interstellar travel or 
> > the colonization of other planets will never be feasible. 
> That would be my bet.  Galaxies are big and light is slow, and we're a 
> lot slower. 
> Brent 

We are also not as smart as we think we are. The average human being is not 
much more than a sort of upright walking and talking chimpanzee. Also as it 
was put in the movie *Men in Black*, A person can be rational, but people 
are a panicky herd of dangerous animals.


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