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It may be useful to know that if events all obey the Markov property (they are probability distributions, conditional on some set of causal parents), then the Reichenbach Common Cause Principle follows (by d-separation arguments) as a theorem. So any counterexamples to RCCP must violate the Markov property as well.

There's also a lot of interesting discussion here.

The idea that "Agents are systems that would adapt their policy if their actions influenced the world in a different way." works well on mechanised CIDs whose variables are neatly divided into object-level and mechanism nodes: we simply check for a path from a utility function F_U to a policy Pi_D. But to apply this to a physical system, we would need a way to obtain such a partition those variables. Specifically, we need to know (1) what counts as a policy, and (2) whether any of its antecedents count as representations of "influence" on the world (and after all, antecedents A of the policy can only be 'representations' of the influence, because in the real world, the agent's actions cannot influence themselves by some D->A->Pi->D loop). Does a spinal reflex count as a policy? Does an ant's decision to fight come from a representation of a desire to save its queen? How accurate does its belief about the forthcoming battle have to be before this representation counts? I'm not sure the paper answers these questions formally, nor am I sure that it's even possible to do so. These questions don't seem to have objectively right or wrong answers.

So we don't really have any full procedure for "identifying agents". I do think we gain some conceptual clarity. But on my reading, this clear definition serves to crystallise how hard it is to identify agents, moreso than it shows practically how it can be done.

(NB. I read this paper months ago, so apologies if I've got any of the details wrong.)

Nice. I've previously argued similarly that if going for tenure, AIS researchers might places that are strong in departments other than their own, for inter-departmental collaboration. This would have similar implications to your thinking about recruiting students from other departments. But I also suggested we should favour capital cities, for policy input, and EA hubs, to enable external collaboration. But tenure may be somewhat less attractive for AIS academics, compared to usual, in that given our abundant funding, we might have reason to favour Top-5 postdocs over top-100 tenure.

Feature suggestion. Using highlighting for higher-res up/downvotes and (dis)agreevotes.

Sometimes you want to indicate what part of a comment you like or dislike, but can't be bothered writing a comment response. In such cases, it would be nice if you could highlight the portion of text that you like/dislike, and for LW to "remember" that highlighting and show it to other users. Concretely, when you click the like/dislike button, the website would remember what text you had highlighted within that comment. Then, if anyone ever wants to see that highlighting, they could hover their mouse over the number of likes, and LW would render the highlighting in that comment.

The benefit would be that readers can conveniently give more nuanced feedback, and writers can have a better understanding of how readers feel about their content. It would stop this nagging wrt "why was this downvoted", and hopefully reduce the extent to which people talk past each other when arguing.

The title suggests (weakly perhaps) that the estimates themselves peer-reviewed. Would be clearer to write "building on" peer reviewed argument, or similar.

Hi Orellanin,

In the early stages, I had in mind that the more info any individual anon-account revealed, the more easily one could infer what time they spent at Leverage, and therefore their identity. So while I don't know for certain, I would guess that I created anonymoose to disperse this info across two accounts.

When I commented on the Basic Facts post as anonymoose, It was not my intent to contrive a fake conversation between two entities with separate voices. I think this is pretty clear from anonymoose's comment, too - it's in the same bulleted and dry format that throwaway uses, so it's an immediate possibility that throwaway and anonymoose are one and the same. I don't know why I used anonymoose there. Maybe due to carelessness, or maybe because I lost access to throwaway. (I know that at one time, an update to the forum login interface did rob me of access to my anon-account, but not sure if this was when that happened).

"A Russian nuclear strike would change the course of the conflict and almost certainly provoke a "physical response" from Ukraine's allies and potentially from the North Atlantic Treaty Organization, a senior NATO official said on Wednesday.

Any use of nuclear weapons by Moscow would have "unprecedented consequences" for Russia, the official said on the eve of a closed-door meeting of NATO's nuclear planning group on Thursday.

Speaking on condition of anonymity, he said a nuclear strike by Moscow would "almost certainly be drawing a physical response from many allies, and potentially from NATO itself". "-Reuters"

I have heard of talk that the US might instead arm Ukraine with tactical nukes of its own, although I think that would be at least comparably risky as military retaliation.

The reasoning is that retaliating is US doctrine - they generally respond to hostile actions in-kind, to deter them. If Ukraine got nuked, the level of outrage would place intense pressure on Biden to do something, and the hawks would become a lot louder than the doves, similar to after the 9/11 attacks. In the case of Russia, the US has exhausted most non-military avenues already. And US is a very militaristic country - they have many times bombed countries (Syria, Iraq, Afghanistan, Libya) for much less. So military action just seems very likely. (Involving all of NATO or not, as michel says.)

I think your middle number is clearly too low. The risk scenario does not require that NATO trigger article 5 necessarily, but just that they carry out a strategically significant military response, like eliminating Russia's Black Sea Fleet, nuking, or creating a no-fly zone. And Max's 80% makes more sense than your 50% for he union of these possibilities, because it is hard to imagine that the US would stand down without penalising the use of nukes.

I would be at maybe .2*.8*.15=.024 for this particular chain of events leading to major US-Russia nuclear war.

All of these seem to be good points, although I haven't given up on liquidity subsidy schemes yet.

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