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andisart said:
Keep an open mind folks!

A lot of comments in this post are basing assumptions on our own level of civilization, like saying if there was aliens and they had come all this long way here they would just sit in the sky and disappear. Who says they would need that long? The universe is so old, it is easily possible that there are civilizations that had thousands, if not hundreds of thousand years more in advancement in technology and consciousness. Just imagine where we would be in 1000 years. And principles of physics are regularly being discovered as not the full truth we thought. It would be ignorant to believe we know it all and we can say these things with such certainty.

So they're advanced enough to travel millions of lightyears to find us here, but they're not able to stay discreet while doing so?