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Yeah, i know about convergent evolution. But, lets say life on our planet and life on theirs originated in the same way. That is, spread from the original single-celled source. How many times would evolution have to favour such similar developments for them as it did for us? I'm putting it crudely (it's a continuum rather than a discrete set, but anyway) how many species were passed through to create the first human? And at every step, every change that occurred (relating to similarities between me and that thing) to create humans would have also had to occur for them.
Four limbs, the implication being two for propulsion and two for manipulation. A skeleton. A "face" (that is, sensory organs clustered around one location on the body). What looked like eyes (they're pretty horribly complicated) and what looked like a mouth with a definite jaw structure. Jointed limbs. Upright-ness.
Yeah... not buying it.
Like others have said, maybe intelligent life exists, maybe it doesn't. But that's peripheral, the point i'm making is that this video is a fake.
"Sometimes i think the biggest signal that there must be intelligent life out there is the fact that it hasn't tried to contact us" - Roughly a quote from Calvin and Hobbes.
I agree with you that the alien in the video is a fake.
My point is simply that it is possible, if not certain, that humanoid life forms do exist outside our solar system.
All the features you mentioned are features that existed in early life on Earth. Today, they are just more complex due to the amount of time allowed for specialization. They are not unique to primates, or even mammals, so why can't they be beneficial for life on another planet?
Yes, you are right that it is environmental change/challenges that dictate the path of evolution. However, the exact same environment is not needed in order for convergent evolution to take place.
Is it so hard to imagine that bipedalism, light-detecting eyes, and a skeletal structure could be advantageous and practical for other life-forms in other environments?
And just because there are similarities, does it mean we are the same? That is, does that mean that a similar life form does not have its own unique adaptations?
The universe is too complex and too vast and too old for us to say what isn't possible. Given the numbers of stars in our galaxy, the number of galaxies in our supercluster, and the number of clusters of galaxies in the universe, I have no doubt in my mind that we are not as unique as we may like to think.
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