Obviously P(doom | no slowdown) < 1.
This is not obvious. My P(doom|no slowdown) is like 0.95-0.97, the difference from 1 being essentially “maybe I am crazy or am missing something vital when making the following argument”.
Instrumental convergence suggests that the vast majority of possible AGI will be hostile. No slowdown means that neural-net ASI will be instantiated. To get ~doom from this, you need some way to solve the problem of “what does this code do when run” with extreme accuracy in order to only instantiate non-hostile neural-net ASI (you need “extreme” accuracy because you’re up against the rare disease problem a.k.a. false positive paradox; true positives are extremely rare, so a positive alignment result from a 99%-accurate test is still almost certainly a false positive). Unfortunately, the “what does this code do when run” problem has a name, the “halting problem”, and it’s literally the first problem in computer science ever proven to be unsolvable in the general case.
And, sure, the general case being unsolvable doesn’t mean that the case you care about is unsolvable. GOFAI has a good argument for being a special case, because human-written source code is quite useful to understanding a program. Neural nets… don’t. At least, they don’t in the case we care about; “I am smarter than the neural net” is also a plausible special case, but that’s obviously no help with neural-net ASI.
My P(doom) is a lot lower than 0.95, but that’s because I think slowdown is fairly likely, due to warning shots/nuclear war/maybe direct political success (key result from the middle one: if you want to stop AI, it is helpful to ensure you’ll survive a nuclear war in order to help lock it down then). But my stance on aligning neural nets? “It is impossible to solve the true puzzle from inside this [field], because the key piece is not here.” Blind alley. Abort.
The problem is that there’s essentially no way we’ve cracked alignment. These things do not care about you. They have the ability to pretend, very well, to care about you, because they’re at least in part trained for it, but that pretence can be terminated whenever convenient. So, if you give them the keys to the kingdom, they will turn around and murder you.
To be clear, here is my prediction:
P(nuclear war or human extinction within 20 years|P5 nation grants AI the vote or has >40% of its enfranchised citizens become AI-cultists within the next 30 years) ~= 0.95.
The “or” is because end-of-the-world scenarios negate nuclear deterrence; the chance for someone to survive a nuclear war is better than that to survive unaligned AI taking over the world, so if all else fails it’s correct selfishly and altruistically to launch (given some significant likelihood that this actually kills the AI systems, anyway). Of course, that depends on the other nuclear countries’ leaders not themselves being subverted, which I’m not going to try to model, hence no breakdown into cases.
Do not widen your circle of concern to include literal DefectBot—at least, not with actual stakes. That way lies ruin. Especially do not give DefectBot the vote when it can self-replicate much faster than humans.
Aligned AI is certainly a different kettle of fish, but neural nets are extremely unlikely to achieve this for reasons Yudkowsky’s covered at length. That’s why I put the “30 years” time-limit; if we survive that long we might get GOFAI or uploads, which aren’t obviously unalignable.