Partial solution to Fermi paradox is incentives to colonize. Humans are primates and are territorial, avid to control resources.
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Replying to @Mangan150
If evolution proceeded differently elsewhere, then maybe other intelligent life would have no incentives.
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Replying to @Mangan150
Unlikely that intelligent life could arise outside a predatory, social (but not eusocial) species, tending to Malthusian limit.
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Replying to @Outsideness @Mangan150
.. Coordination of hunting is the main intelligence driver. Evolution avoids big brains when it can. They bring control problems.
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Replying to @Outsideness @Mangan150
Liar vs. liar competition is the main intelligence driver. Eusocial organisms could in theory hunt.
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Replying to @Alrenous @Mangan150
Lots of non-carnivorous social animals. Those with big brains didn't acquire them in the vegetarian stage.
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Eusocial animals don't have deception arms races, so your two points don't coordinate well.
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Replying to @Outsideness
If hunting drives brain enlargement, then it would be possible to have giant-brained ants, but you say this isn't possible.
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Replying to @Alrenous
Pack hunting (which eusocial species don't do). I'm partially agreeing with you. "Coordination" negotiates deception.
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Replying to @Outsideness
Eusocial species don't pack-hunt because they're insects - exoskeletons imply strict size limits, implying swarm tactics.
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They don't pack hunt because they have sterile castes, without private interests to lie about.
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Replying to @Outsideness
I don't see how that follows. I see pack hunting as necessary to down large prey, selecting for communication.
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Replying to @Alrenous @Outsideness
Communication abilities are then hijacked for lying. If this works, you can get a liar arms race and thus a brain arms race.
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End of conversation
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