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**Inenuedbabnor** · 04-30-2006, 06:52 AM

I posted this once before elsewhere, but what do you think? Do you think the government is hiding UFO technology? i.e. flys their own "UFO" based crafts around for experimental operations? Elaborate on your posts.

Depends on what you mean by UFO.

If you mean spacecraft of extraterrestrial origin then probably not.

In order to have such spacecraft you would have to have aliens. This brings up Fermi's paradox, which basically ask if there are other intelligent species out there why haven't we detected them?

Astronomers estimate that a space-faring civilization could colonize the entire galaxy in 5 million years. This is assuming that they can only travel at speeds much less than that of light. If they can travel at speeds near the speed of light then it would take much less time, say "only" 1 million years.

So given the long history of the galaxy surely if there were others out there they would have visited our star system by now. Even if they haven't we should be able to detect their presence from electromagnetic emissions.

So is it possible that given the 400 billion stars or so that are in our galaxy that only one (ours) harbors intelligent life?

I believe that must be the case. We probably are alone. How can this be?

The goldilocks principle states that we have intelligent life on Earth because the Earth just happens to be perfect for us. Consider:

The Earth has an usually large moon that stabilizes our planet's axis and provides a stable environment for the development of life. Without the moon we would not exist.

The Earth has a powerful magnetic field that protects us from solar wind. Mars does not have a magnetic field like this and is hostile to life. Without it the Earth would surely be lifeless as well.

Jupiter is large and in a perfect spot in the solar system to protect the inner planets from meteor and comet impacts. It doesn't stop them all but without Jupiter the Earth would be hit much more often than it is making higher life forms impossible.

In addition to these threats, there are many other ways for intelligent species to be wiped out.

nuclear warfare
super caldera volcanic eruption
hydrocarbon depletion without a replacement energy
dysgenic breeding
evironmental collapse
powerful solar storm
super nova explosion in a nearby star system
collision with another star system or black hole
rapid climate change or extreme climate changes (ie snowball Earth)
nanotechnological warfare
epidemic disease

Thats all I can think of right now but there are probably many more.

So my guess is that advanced civilizations simply do not last long enough to travel between the stars.

04-30-2006, 06:52 AM	#1
Inenuedbabnor Join Date Nov 2005 Posts 411 Senior Member	Govermnet UFO Technology Coverup? I posted this once before elsewhere, but what do you think? Do you think the government is hiding UFO technology? i.e. flys their own "UFO" based crafts around for experimental operations? Elaborate on your posts. Depends on what you mean by UFO. If you mean spacecraft of extraterrestrial origin then probably not. In order to have such spacecraft you would have to have aliens. This brings up Fermi's paradox, which basically ask if there are other intelligent species out there why haven't we detected them? Astronomers estimate that a space-faring civilization could colonize the entire galaxy in 5 million years. This is assuming that they can only travel at speeds much less than that of light. If they can travel at speeds near the speed of light then it would take much less time, say "only" 1 million years. So given the long history of the galaxy surely if there were others out there they would have visited our star system by now. Even if they haven't we should be able to detect their presence from electromagnetic emissions. So is it possible that given the 400 billion stars or so that are in our galaxy that only one (ours) harbors intelligent life? I believe that must be the case. We probably are alone. How can this be? The goldilocks principle states that we have intelligent life on Earth because the Earth just happens to be perfect for us. Consider: The Earth has an usually large moon that stabilizes our planet's axis and provides a stable environment for the development of life. Without the moon we would not exist. The Earth has a powerful magnetic field that protects us from solar wind. Mars does not have a magnetic field like this and is hostile to life. Without it the Earth would surely be lifeless as well. Jupiter is large and in a perfect spot in the solar system to protect the inner planets from meteor and comet impacts. It doesn't stop them all but without Jupiter the Earth would be hit much more often than it is making higher life forms impossible. In addition to these threats, there are many other ways for intelligent species to be wiped out. nuclear warfare super caldera volcanic eruption hydrocarbon depletion without a replacement energy dysgenic breeding evironmental collapse powerful solar storm super nova explosion in a nearby star system collision with another star system or black hole rapid climate change or extreme climate changes (ie snowball Earth) nanotechnological warfare epidemic disease Thats all I can think of right now but there are probably many more. So my guess is that advanced civilizations simply do not last long enough to travel between the stars.
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