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.
My super summarized summary would be something like this: There're a certain set of values (well, a certain sort of computation to judge the value of some state of affairs, including updates in the way we compute it, and the things that it approves of are what we are concerned with) that we call "morality".
We humans simply happen to be the sorts of beings that care about this morality stuff as opposed to caring about, say, maximizing paperclips.
Further, it is better (by which I mean "more moral") to be moral than to be paperclipish. We should (where by "should", I more or less am just referring to the morality criterion) indeed be moral.
Morality consists of multiple criteria including happiness, love, life (well, consciousness), creativity, novelty, self determination, growth, discovery, compassion, fairness, etc...
It's an objective criteria, just as "What is 2+3?" is a clear objective question with an objective answer. It simply happens to be that we're the sorts of beings that are, metaphorically speaking, concerned with "what is 2+3?" and not at all concerned with "what is 6*7?"
If we can't say why we morally-should care about our particular values, why should we deem them moral?