AI safety engineering, target selection, and alignment theory | Hacker News Reader

AI safety engineering, target selection, and alignment theory

intelligence.org

61 pointsapsec1126 comments

What concerns me about MIRI's research isn't that they think about idealized models. It's that they expect the actual product to be an idealized model. They want to make an AI that is mathematically provable to be safe.

I don't have a word for it, but there's this weird behavior I've seen mathematicians do. And that I have done myself. Where if a solution isn't mathematically perfect and elegant and proven, then it must be wrong.

We didn't go to the moon in a perfect rocket, we did the best we could with what we had. It wasn't 100% safe. Guaranteed safety is of course impossible, and if we spent all our time trying the Russians would have gotten there first.

Yes. I've noticed this too on other threads talking about AI safety. The recent advancements in machine learning that are creating all the hype and industry interest have all been through the complete opposite approach that MIRI/AI safety researchers is taking. These advancements have been largely driven through empirical research, incremental engineering, trial-and-error practice, and rules-of-thumb (I am basically describing the state of deep learning research).

Speaking as a MIRI employee, I can say that MIRI isn't trying to build AI that's mathematically provable to be safe. This misconception comes from the same place the "AI safety engineering, etc." post is speaking to -- the assumption that if (e.g.) we do work in provability theory to develop simple general models of reflective reasoning, then the finished product must fall within provability theory.

Smarter-than-human AI systems will presumably reason probabilistically, and all real-world safety guarantees are probabilistic. But theorem-proving can be useful in some contexts for making us quantitatively more confident in systems' behavior (see https://intelligence.org/2013/10/03/proofs/), and toy models of theorem-proving agents can also be useful just for helping shore up our understanding of the problem space and of the formal tools that are likely to be relevant down the line -- the analog of "calculus" in the rocket example.

It is, perhaps, unfortunate that their choice of analogy (cannonball into orbit) is one that is impossible. Even on a perfectly spherical, airless planet...

Okay. You can move the cannon afterwards, and the cannonball will just swish by at hilarious velocity.

Get a well-timed gravity assist from a passing asteroid.

Do not fire from the equator, or if you must, don't aim along the line of latitude. This way, the planet's rotation should move the cannon away before the ball completes a full orbit.

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