Originally posted by blue bird
SETI has already listened for intelligent signals from Gliese 581 on two occasions in 1995 and 1997 - without result.
SETI is obviously interested in Red Dwarfs star system - but why NO signal whatsoever from Gliese 581 or many other red dwarfs- which are so abundant
in Space ( 80% )!?
Perhaps they are not using the technologies that are being targeted by SETI? As far we know, civilizations that develop elsewhere in the universe
might be using lasers, perhaps they are all telepathic, maybe they only communicate in print? The possibilities are endless. There is simply no way
to predict how a civilization will evolve. Again, SETI is presuming, by listening for "radio signals" that an alien race would have evolved in a
similar way as civilization developed on the Earth -- with similar technologies.
My own belief is one that has been suggested by Carl Sagan and others; that space is a dangerous place and it's not always wise to be noticeable. If
the universe is really teeming with life, one could presume that not all of this "life" is necessarily friendly. It might behoove a civilization
to, literally, hide it's presence from it's "neighbors". In nature, most creatures have evolved camoflage in an effort to live out their
existence without "interference" from other creatures that might cause harm. This might very well be the case throughout the universe.
Just because we don't pick up any signals from any sources does not mean that intelligent civilizations don't exist. It may simply mean that they
don't want anyone to notice them and they have taken measures to make certain they remain that way.
