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There has been so much misinformation thrown around by both sides of the argument that it is difficult to know if we will ever know the real truth

No answers-more mistery, more desire for investigation. But actually, I can't choose for myself which version I wanted it to be... If it's human hand layed on it, then we still got brains which can create some amazing technologies, on one side... On the other, if it's aliens, then we have to figure out how their technology works, and then I guess we still didn't figured. But Aliens! Only one thought of their existence! It's amazing