There seems to be a widespread impression that the metaethics sequence was not very successful as an explanation of Eliezer Yudkowsky's views. It even says so on the wiki. And frankly, I'm puzzled by this... hence the "apparently" in this post's title. When I read the metaethics sequence, it seemed to make perfect sense to me. I can think of a couple things that may have made me different from the average OB/LW reader in this regard:
- I read Three Worlds Collide before doing my systematic read-through of the sequences.
- I have a background in academic philosophy, so I had a similar thought to Richard Chapell's linking of Eliezer's metaethics to rigid designators independently of Richard.
I think what confuses people is that he
1) claims that morality isn't arbitrary and we can make definitive statements about it
2) Also claims no universally compelling arguments.
The confusion is resolved by realizing that he defines the words "moral" and "good" as roughly equivalent to human CEV.
So according to Eliezer, it's not that Humans think love, pleasure, and equality is Good and paperclippers think paperclips are Good. It's that love, pleasure, and equality are part of the definition of good, while paperclips are just part of the definition of paperclippy. The Paperclipper doesn't think paperclips are good...it simply doesn't care about good, instead pursuing paperclippy.
Thus, moral relativism can be decried while "no universally compelling arguments" can be defended. Under this semantic structure, Paperclipper will just say "okay, sure...killing is immoral, but I don't really care as long as it's paperclippy."
Thus, arguments about morality among humans are analogous to Pebblesorter arguments about which piles are correct. In both cases, there is a correct answer.
It's an entirely semantic confusion.
I suggest that ethicists aught to have different words for the various different rigorized definitions of Good to avoid this sort of confusion. Since Eliezer-Good is roughly synonymous to CEV, maybe we can just call it CEV from now on?
Edit: At the very least, CEV is one rigorization of Eliezer-Good, even if it doesn't articulate everything about it. There are multiple levels of rigor and naivety that may be involved here. Eliezer-good is more rigorous than "good" but might not capture all the subtleties of the naive conception. CEV is more rigorous than Eliezer-good, but it might not capture the full range of subtleties within Eliezer-good (and it's only one of multiple ways to rigorize Eliezer-good...consider Coherent Aggregate Volition, for example, as an alternative rigorization of Eliezer-good).
The question of what EY means is entangled with the question of why he thinks it's true.
This account of his meaning
..is pretty incredible as an argument, because it appears to be an argument by definition...in fact, an argument by normative and novel definition...and he hates arguments by definition.
Well, even if they are not all bad , his argument-by-definition is not one of the good ones, because it's not based on an accepted or common definition. Inasmuch as it's both a novel t... (read more)