We do know that under the laws of physics evolution of intelligent creatures is possible. We also know that against someone capable of coming here, we're defenseless, conveniently pinned to this beautiful, but small rock and with no way to escape. We also know that space is huge beyond imagination and that the law of large numbers means that after billions of years of unfamiliar evolution across the billions of unfamiliar worlds throughout Milky Way alone almost anything may conceivably come out of it.
At times, I find it weirdly surprising that I don't actually experience fear every time I look up at the sky. Then again the lack of fear is easy to understand: a deadly encounter with an alien race happens only once, so evolution had no chance to tune our responses appropriately.
This reminds me of dodo of Mauritius [1]. It is said that the birds were not fearful of humans (nor presumably of other abstract threats that could conceivably come from across the seas).
At times, I find it weirdly surprising that I don't actually experience fear every time I look up at the sky. Then again the lack of fear is easy to understand: a deadly encounter with an alien race happens only once, so evolution had no chance to tune our responses appropriately.
This reminds me of dodo of Mauritius [1]. It is said that the birds were not fearful of humans (nor presumably of other abstract threats that could conceivably come from across the seas).
[1] https://en.wikipedia.org/wiki/Dodo