Quote:
Originally Posted by Thor
Like Carl Sagan said UFO's and Aliens didn't start happening in popular culture until the last 100yrs, before that people claimed sightings of Demons, dragons, witches, angels, etc..
Its just that since Alien movies, books, hoaxes got into the mind of the world we now have this culture of abductee's and people who are convinced the aliens are here visiting.
Theres no coincidence all the sketches of aliens are similar, human like features which right off the bat would pretty much be impossible (2 eyes, nose, mouth, 2 arms, 2 legs).. The odds of a species evolving on another planet looking anything like us is so remote it defies logic.
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I agree with everything except the last part.
There could be strong advantages to most environments for higher beings to be shaped more or less like us.
Furthermore, we don't exactly know the threshold for life and how and where it evolves. We assume there needs to be water, so there's already a big similarity between our environment and a possible alien one. But it could be that the window for environments that sustain higher life is relatively narrow, therefore making it even more likely that any life that did exist, would evolve in a similar manner to us.
Not saying it wouldn't or couldn't happen the way you said, just that I don't think it's so unbelievable they might not be humanoid or partially humanoid in nature. We don't really know anything about evolution of life on other planets, or even enough about life, to really hazard an accurate guess.
All that said, I have come to believe for quite sometime we have never been visited by aliens if there are even any out there. The more you research the cases, the more they seem fishy. Also there are strong logical arguments against us being visited, but not being 'contacted' as a species. It's more likely, we're not visited at all. Beings that could bend time and space, as they would have to to get to us, would have much better things to do then spy on us from afar, and experiment with us and our cows.