In You Provably Can't Trust Yourself, Eliezer tried to figured out why his audience didn't understand his meta-ethics sequence even after they had followed him through philosophy of language and quantum physics. Meta-ethics is my specialty, and I can't figure out what Eliezer's meta-ethical position is. And at least at this point, professionals like Robin Hanson and Toby Ord couldn't figure it out, either.
Part of the problem is that because Eliezer has gotten little value from professional philosophy, he writes about morality in a highly idiosyncratic way, using terms that would require reading hundreds of posts to understand. I might understand Eliezer's meta-ethics better if he would just cough up his positions on standard meta-ethical debates like cognitivism, motivation, the sources of normativity, moral epistemology, and so on. Nick Beckstead recently told me he thinks Eliezer's meta-ethical views are similar to those of Michael Smith, but I'm not seeing it.
If you think you can help me (and others) understand Eliezer's meta-ethical theory, please leave a comment!
Update: This comment by Richard Chappell made sense of Eliezer's meta-ethics for me.
Hm. I can say truthfully that I don't care whether I like vanilla or chocolate ice cream more. I suppose that the statement of my utility with regard to eating vanilla vs. chocolate ice cream would be 'I assign higher utility to eating the flavor of ice cream which tastes better to me.' That is, I only care about a state of my mind. So, if the circumstances changed so I could procure that state of mind by other means (ex: eating vanilla instead of chocolate ice cream), I would have no problem with that. The action that I would take after being hit by the alien ray gun does not give me any less utility after being hit by the alien ray gun than the action that I take now gives me in the present. So I don't care whether I get hit by the ray gun.
But my statement of utility with regard to people being raped would be "I assign much lower utility to someone being raped them not being raped." Here, I care about a state of the world outside of my mind. The action that I would take after being hit by the alien ray gun (rape) has less utility under my current utility function than (~rape), so my current utility function would assign negative utility to being hit by the ray gun.
This much makes sense to me.
I don't know what 'reflective equilibrium' means; this may be because I didn't really make it through the metaethics sequence. After I formulated what I've said in this comment and the above one, I wasn't getting much out of it.
Edit: Inserted some italics for the main difference between the two scenarios and removed a set of italics. No content changes.