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.

Is your difficulty in understanding how Eliezer thinks about ethics or in working out what side he fights for in various standardised intellectual battles? The first task seems fairly easy. He thinks like one would expect an intelligent reductionist programmer-type to think. Translating that into philosopher speak is somewhat more challenging.