Earth is a tiny spec within the universe, do you think we are really alone?
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Good answer. Well in my point of view this is a good answer. I also have no proof, but in my mind, how can we really be alone considering how vast the universe is. Not so long ago the Earth was flat, now it's round...
Thank you and you are right, but change may also not be limited to just our planet. Imagine when we were young as a spices, we didn't even know there was a "space". Now, imagine how much change we missed outside of our own.