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You’re right—the way I wrote the original comment isn’t particularly easy to parse. I’d been reading philosophy of language all day, and didn’t pause to edit. I
by eynsham 3y ago
You’re right—the way I wrote the original comment isn’t particularly easy to parse. I’d been reading philosophy of language all day, and didn’t pause to edit. I’ll try to rephrase here; I don’t think the points are particularly complicated, so if the exposition here is still inadequate, that’s my fault.
1. On one view of intelligence, something is either intelligent or not. On another, some things are more intelligent than others, but there’s no clear cutoff between intelligent and non-intelligent things. On the first view, it seems quite plausible that actually existing ‘AI’ (e.g., GPT) doesn’t count as intelligent. On the second view, actually existing ‘AI’ seems to be at least somewhat intelligent: more so than most other software we’ve written. If the second view is right, it’s unhelpful in many cases to simply pronounce things intelligent and unintelligent.
2. By way of analogy, suppose I say that a walking route is quite hard. I might mean that it’s very long. Or I might mean that it’s hilly. Or I might mean that it’s very boggy. Each is a perfectly good reason to say that the route is hard. So a walk that’s merely quite hilly counts as hard, even if it’s fairly short and the ground is dry.
We might say that attributions of intelligence are similar. If so, we can attribute intelligence to systems for many different individually respectable reasons. Perhaps a system is intelligent because it can respond to novel situations in some appropriate way. Perhaps it’s intelligent because it predicts a certain statistical parameter correctly. Perhaps it’s intelligent because it’s small but can correctly deal with a wide range of situations.
If the analogy is right, it would be odd (perhaps wrong) to say that a system good at one of these just isn’t intelligent because it falls down on the other measures. If so, surely GPT counts as intelligent for at least one respectable reason or another.
On the other hand, suppose I call someone tall. There’s only one way to be tall. Being fat, or having muscly arms, or having long legs but a short torso don’t count. So the analogy doesn’t apply to all concepts. Does it apply to intelligence? Initially, it might seem that it doesn’t: surely there are lots of ways to be intelligent. But I’ve heard that the psychometrics literature suggests that all these measures correlate to a great degree, and statistically can be predicted by a single-factor model (thus ‘g’). That might suggest that there really is only one way to be intelligent, and that appearances are misleading.
I am not familiar with the psychometrics literature, so I wouldn’t know; maybe the single-factor model is wrong. But my point is this. Even if the single-factor model is right, it’s only been shown to be right about humans (so far): their statistical base has comprised humans. So maybe a multi-factor model of intelligence works better for would-be machine intelligence. For example, perhaps arithmetic ability in humans is predicted well by a single factor; maybe it’s even reducible to some single form of intelligence. But we can obviously separate arithmetic ability from e.g. analytic ability in computers, to an almost arbitrary extent, by making very good calculators. (And LLMs are often not very good at arithmetic, though I gather that’s being improved.) If that is so, intelligence is more like difficulty of a walking route than tallness. And so that’s another reason to avoid straightforward denial that would-be AI is or could be intelligent.
3. It’s quite plausible that no presently existing would-be AI should count as intelligent. But we don’t know whether that’s a general limitation or not. And if there are general limitations, how general are they? For example, maybe LLMs couldn’t be intelligent but some GOFAI type thing could be. Or maybe we simply need a new architecture.
One argument we could read in Fodor is that neural networks have to implement a so-called language of thought to be meaningfully intelligent. That would be quite a general limitation, though arguably one we could overcome. (I’ve always been a bit confused by what Fodor really meant by a language of thought, and in particular what he required of mental representations, but I haven’t made a full study of him yet.)
A much stronger argument from J.R. Lucas is broadly ‘anti-mechanism’, which would roughly include everything we can presently engineer or can be run on a Turing machine. This is very strong, and not many people agree in my experience.
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The point of my comment is that these matters are complicated, and the comment above didn’t really address these complications. Sometimes nuance doesn’t add much or isn’t worth it. (I quite like Kieran’s ‘Fuck Nuance’ as a lesson for all theorising, not just sociology.) But sometimes it does matter. ‘[T]here is no artificial intelligence’ is hasty enough to require a response.