Space/Science — HabitableZone

Space/Science » in reply to That is the definition of "alien".

re: That is the definition of "alien".

"We wouldn't even be able to recognize each other as sentient."

Hmmm, I don't know about that, but as of right now, I would recognize a sentient.

Robert put it well here: "Intelligence arising on life-bearing planets? Well, OK, there is some room for debate, especially if you allow for the definitional question of "what is intelligence?" I think our variety arose from the sociability of our species, and maybe that's rare, but maybe not. Cooperation demonstrably facilitates species survival, and I have a hard time believing that nowhere else in the universe did a species hit upon that particular strategy."

Nor on Earth. Other than humans, other species on Earth have sentient beings and I don't doubt that they know it. In the wild, animals have learned to live together and know where to draw lines, etc. Call it instinct or intelligence, but it's there.

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