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Originally Posted by CanwllCorfe
Yup. This is pretty much how I feel on the subject. Do I think it's possible they visited us at one time or another? Perhaps, but nothing further than that.
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I doubt it. From what we know about the way our universe works, it's currently impossible to travel faster than the speed of light. So even if an advanced alien race from another galaxy developed a method of traveling at the speed of light (299,792,458 m/s), it would take them thousands of year to "visit" us. The nearest galaxies are the Sagittarius and Canis Major dwarfs, which are some 80,000 and 25,000 light years away respectively. So that's a 25,000-80,000 year journey.
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Exactly! How could it be that we are the ONLY intelligent life in a practically limitless space?  I'm having a hard time thinking that there WOULDN'T be.
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Yeah, and to be honest, I think the notion that we're the only intelligent form of life in the universe is largely a religious one.