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And I don't buy the arguement that is always given about "there's no way they could get here... physics state that blah blah yadda yadda yadda..."
Well, if the universe is as vast and endless as people make it out to be when using that as support for alien life then that's a
lot of real estate to be covering to find us. Imagine if California was devoid of humans except two people and wonder at the chance of them meeting one another.
Of course you may say that now we're signaling. So give one of the humans a flashlight to shine into the sky.
I can easily believe in the existance of "lower" life in various stages throughout the galaxy and universe. Single celled, multi-celled worm like creatures, etc. I can probably accept, for sake of argument, the existance of life approaching the same state of development we consider mammalian forms to have. I'm not saying they would be mammals but rather life forms with emotional needs, some display of intelligence, etc etc. Maybe.. maybe.. somewhere out there are green bulb headed men in spaceships who've solved all wars, famine, pestilence, etc but I think the chance of us bumping into them makes it a moot point until they arrive.