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Is it possible - and bear with me, here - that we humans have something similar in our midst? Something that has co-evolved mimicry over eons to bypass our "other" triggers. No uncanny valley or creepy vibe detected. A kind of Cuckoo bird for humans.



If evolution is just nature throwing dice, then it would take many, many generations to evolve something that complex.

I think we see more of these interesting finds in the world of small animals because they have a much higher frequency of turnover. Therefore a higher statistical probability to produce interesting adaptations.

I'm just a layperson so I'm using my own terminology here.

Then there's the other interesting possibility, that there is some way to consciously influence the evolution of DNA. I mean it's pretty freaky that this beetle evolved an exact replica of a termite, a creature it presumably spends a lot of time around. How did its DNA "know" to evolve in that diretion? Are there thousands of beetles out there with half assed copies of termites on their backs?


> I think we see more of these interesting finds in the world of small animals because they have a much higher frequency of turnover. Therefore a higher statistical probability to produce interesting adaptations.

This is the best argument against so far. Still, if a species co-evolved alongside us since our ancestors were small furry animals, this would be quite a few generations.


Interesting idea, of course it seems very unlikely, but running with it, what could potential tells be? I imagine there might be tells something weird is off if you got really close to them, so they may stay on the periphery of most humans lives and largely stick to their own (definitely at least for mating).

I'd bet you could tell with DNA analysis, or through other medical means such as scans since they wouldn't have had time to adjust for that. If even a single mimic was found the secret would get out, so they'd have to be very good at avoiding the medical world.

I guess you'd probably be looking at either small groups of particularly successful people who have the resources to keep their mimicry hidden and keep to themselves (nobility?), or at some societal outcasts that roam around, never getting close to anyone.

They'd somehow have to avoid their nature being discovered even after death which may be one of the harder things to believe, since presumably they could also die suddenly from accidents etc. which would often prompt careful medical examination which would then reveal the truth. Of course it's possible some individuals did discover the truth, but no one believe them, but it's hard to imagine that at scale. So if these mimics exist, we're probably talking a few hundred or thousand of them at most


> If even a single mimic was found the secret would get out...

I'm imagining these creatures as something we do not have defenses against, so, given that this creature would have evolved alongside our social, language and analytical abilities, these would not be defenses.


Hah! I was thinking something along those lines - in light of the recent interest in UAPs.

If NHI's do exist, one wonders if they could pull out such tricks as well in order to blend in and take over different biomes/planets.


This is the core plot description of one of my favourite fictional vampires, Suzy McKee Charnas' "Dr Edward Weyland".

https://en.wikipedia.org/wiki/The_Vampire_Tapestry


Charnas died recently, I was fairly sad about that. There's also overlap with The Hunger (the novel, not the film which was made from it) in terms of having a separate species. Or Katt Shea's Dance of the Damned.

The X-Files episode "Folie a Deux" featured an insect which "fit in" among humans. You might like that.


> Charnas died recently, I was fairly sad about that.

Oh, that is sad news. She was very good, and somewhat underrated, I think. I thought her books vastly better than Anne Rice or even the fun Lauren Hamilton ones, for instance. I must admit I've never even read Stephanie Meyer or E F Leonard's ones on this theme but I'm willing to go out on a limb and say SMC was better than them anyway.


I did them all, once upon a time.

Charnas was one of the last old-school s/f writers and the proof to it is that The Vampire Tapestry is what they used to call a "fix-up." She brought a certain psychological angle that was almost tender, I think, to the issue of being a predator (and worse, what appears to be a species of one!) embedded in a world of your prey.


I heard a theory that domestic cats mimic human babies.


Or you can flip that and say; humans domesticated cats because they sound similar to human babies.


Presumably you're referring to ChatGPT?


I would think that the evolution of the human mind (and with that technology) has been to fast for any such parasite to keep up. At least for hiding as a human-sized non-human organism.


Interesting thought. Not a different species, but think (highly intelligent) sociopaths...




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