The Evolutionary-Cognitive Boundary

22 Eliezer_Yudkowsky 12 February 2009 04:44PM

I tend to draw a very sharp line between anything that happens inside a brain and anything that happened in evolutionary history.  There are good reasons for this!  Anything originally computed in a brain can be expected to be recomputed, on the fly, in response to changing circumstances.

Consider, for example, the hypothesis that managers behave rudely toward subordinates "to signal their higher status".  This hypothesis then has two natural subdivisions:

If rudeness is an executing adaptation as such - something historically linked to the fact it signaled high status, but not psychologically linked to status drives - then we might experiment and find that, say, the rudeness of high-status men to lower-status men depended on the number of desirable women watching, but that they weren't aware of this fact.  Or maybe that people are just as rude when posting completely anonymously on the Internet (or more rude; they can now indulge their adapted penchant to be rude without worrying about the now-nonexistent reputational consequences).

If rudeness is a conscious or subconscious strategy to signal high status (which is itself a universal adapted desire), then we're more likely to expect the style of rudeness to be culturally variable, like clothes or jewelry; different kinds of rudeness will send different signals in different places.  People will be most likely to be rude (in the culturally indicated fashion) in front of those whom they have the greatest psychological desire to impress with their own high status.

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Cynicism in Ev-Psych (and Econ?)

14 Eliezer_Yudkowsky 11 February 2009 03:06PM

Though I know more about the former than the latter, I begin to suspect that different styles of cynicism prevail in evolutionary psychology than in microeconomics.

Evolutionary psychologists are absolutely and uniformly cynical about the real reason why humans are universally wired with a chunk of complex purposeful functional circuitry X (e.g. an emotion) - we have X because it increased inclusive genetic fitness in the ancestral environment, full stop.

Evolutionary psychologists are mildly cynical about the environmental circumstances that activate and maintain an emotion.  For example, if you fall in love with the body, mind, and soul of some beautiful mate, an evolutionary psychologist would like to check up on you in ten years to see whether the degree to which you think your mate's mind is still beautiful, correlates with independent judges' ratings of how physically attractive that mate still is.

But it wouldn't be conventionally ev-psych cynicism to suppose that you don't really love your mate, and that you were actually just attracted to their body all along, but that instead you told yourself a self-deceiving story about virtuously loving them for their mind, in order to falsely signal commitment.

Robin, on the other hand, often seems to think that this general type of cynicism is the default explanation and that anything else bears a burden of proof - why suppose an explanation that invokes a genuine virtue, when a selfish desire will do?

Of course my experience with having deep discussions with economists mostly consists of talking to Robin, but I suspect that this is at least partially reflective of a difference between the ev-psych and economic notions of parsimony.

Ev-psychers are trying to be parsimonious with how complex of an adaptation they postulate, and how cleverly complicated they are supposing natural selection to have been.

Economists... well, it's not my field, but maybe they're trying be parsimonious by having just a few simple motives that play out in complex ways via consequentialist calculations?

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Informers and Persuaders

12 Eliezer_Yudkowsky 10 February 2009 08:22PM

Suppose we lived in this completely alternate universe where nothing in academia was about status, and no one had any concept of style.  A universe where people wrote journal articles, and editors approved them, without the tiniest shred of concern for what "impression" it gave - without trying to look serious or solemn or sophisticated, and without being afraid of looking silly or even stupid.  We shall even suppose that readers, correspondingly, have no such impressions.

In this simpler world, academics write papers from only two possible motives:

First, they may have some theory of which they desire to persuade others; this theory may or may not be true, and may or may not be believed for virtuous reasons or with very strong confidence, but the writer of the paper desires to gain adherents for it.

Second, there will be those who write with an utterly pure and virtuous love of the truthfinding process; they desire solely to give people more unfiltered evidence and to see evidence correctly added up, without a shred of attachment to their or anyone else's theory.

People in the first group may want to signal membership in the second group, but people in the second group only want their readers to be well-informed.  In any case, to first order we must suppose that none of this is about signaling - that all such motives are just blanked out.

What do journal articles in this world look like, and how do the Persuaders' articles differ from the Informers'?

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Spooky Action at a Distance: The No-Communication Theorem

10 Eliezer_Yudkowsky 05 May 2008 02:43AM

Previously in seriesBell's Theorem: No EPR "Reality"

When you have a pair of entangled particles, such as oppositely polarized photons, one particle seems to somehow "know" the result of distant measurements on the other particle.  If you measure photon A to be polarized at 0°, photon B somehow immediately knows that it should have the opposite polarization of 90°.

Einstein famously called this "spukhafte Fernwirkung" or "spooky action at a distance".  Einstein didn't know about decoherence, so it seemed spooky to him.

Though, to be fair, Einstein knew perfectly well that the universe couldn't really be "spooky".  It was a then-popular interpretation of QM that Einstein was calling "spooky", not the universe itself.

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The "Outside the Box" Box

33 Eliezer_Yudkowsky 12 October 2007 10:50PM

Whenever someone exhorts you to "think outside the box", they usually, for your convenience, point out exactly where "outside the box" is located.  Isn't it funny how nonconformists all dress the same...

In Artificial Intelligence, everyone outside the field has a cached result for brilliant new revolutionary AI idea—neural networks, which work just like the human brain!  New AI Idea: complete the pattern:  "Logical AIs, despite all the big promises, have failed to provide real intelligence for decades—what we need are neural networks!"

This cached thought has been around for three decades.  Still no general intelligence.  But, somehow, everyone outside the field knows that neural networks are the Dominant-Paradigm-Overthrowing New Idea, ever since backpropagation was invented in the 1970s.  Talk about your aging hippies.

Nonconformist images, by their nature, permit no departure from the norm.  If you don't wear black, how will people know you're a tortured artist?  How will people recognize uniqueness if you don't fit the standard pattern for what uniqueness is supposed to look like?  How will anyone recognize you've got a revolutionary AI concept, if it's not about neural networks?

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