On 10 May 2012, Michael Stemper verbalised:
> The same idea was portrayed earlier, in Niven's _World of Ptavvs_. Since
> the Thrintun could use the Power to make others meet their needs, there
> was never really any selection for intelligence. I believe that the
> narration describes them as being about as bright as a human with an
> I.Q. of 75.
As is typical of Niven this works at first sight but requires some rapid
arm-waving to make it keep working after you think things through. Why
would an organism like that be more intelligent than a shrew? We *have*
a large number of different species of mind-controlling organism on
Earth: they are all without exception obligate parasites, are entirely
devoid of intelligence -- many are unicellular, some are fungi -- and
can do really rather nifty and intricate things to the parasitised
organisms' behaviour, at least as nifty as anything we see done with the
Power.
The same should have happened to the thrintun. Why didn't it? The
thrintun *are* intelligent, far more intelligent than any organism on
Earth other than humanity: any explanation for the Power must explain
this, and Niven doesn't. If Niven is right and the Power eliminates any
selection pressure for increased intelligence, the Power must postdate
the thrintun's acquisition of intelligence: perhaps the thrintun were
once much more intelligent and engineered the Power into themselves
without realising what it would do to their intellect over the ages. If
they have no sentient neighbours on their homeworld (none are
mentioned), this would explain how they managed to get access to
interstellar travel: they came up with it when they were smarter. (An
alternative is that someone with FTL contacted *them* after they gave
themselves the Power and lost some intelligence, and was taken over.)
But another explanation is possible. The Power is a very generalist
ability: unlike Cordyceps fungi, which manipulate ants into spreading
the fungi automatically, a being with the Power has to *think* about
what orders to give, and when, and why. Thus, perhaps the Power came
first, and *itself* served as a spur for the evolution of intelligence.
A more intelligent entity can give better orders, and can arrange things
such that a temporarily non-controlled slave will have no reason to
rebel. This seems especially likely when you consider that in order to
do this you have to maintain models of the mindstate of those of your
slaves you are not currently controlling, and certainly models of the
mindstate of other thrintun. And *that*, ladies and gentlemen, is the
one thing we *do* know leads to the evolution of intelligence, because
it did so in us. (The lethal nature of inter-Thrintun contests alluded
to in the text makes the even more likely. And they have a complex
society: more social modelling.)
So I'd say the thrintun are likely to be growing more intelligent at a
very rapid pace at the time we see them, spurred by the red queen's race
of modelling of states of increasing numbers of slaves and other
thrintun. (Their slaves will be growing more intelligent too, for the
same reason, unless selectively bred to stop it). It's just that the
Power let them get off their planet at a point long before their unaided
intellect would otherwise have allowed them to.
For the latter explanation to work, someone with FTL *must* have
contacted them and been taken over, unless this is a universe in which
interstellar travel is so easy that someone with an IQ of 75 could do it
unaided. Who knows, maybe they got lucky and found an FTL mechanism by
chance that even an idiot can build, but that is so hard to discover by
reasoning from other known facts about the universe that even the
puppeteers and Outsiders haven't discovered it. Seems unlikely, but it
would explain why they have a nifty FTL mechanism that appears nowhere
else in the Known Space universe.
I think I may be overthinking this.
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