This is an interesting idea. Aaronson may be joking when he says he's "solv[ed] a 2400-year-old open problem in philosophy," but in case he's not, this doesn't

This is an interesting idea. Aaronson may be joking when he says he's "solv[ed] a 2400-year-old open problem in philosophy," but in case he's not, this doesn't come anywhere close to solving ethics. Philosophically speaking, it's still necessary to show why his definition of "moral" holds up. All he's done is assess a certain quality and then call it "morality." I think it could better be called "meta-cooperativeness" or something like that. I think Aaronson realizes this, because he does talk about how Eigenjesus and Eigenmoses don't accord with our moral intuitions in some cases. He also addresses this somewhat in the section "Scooped by Plato." His major point--that something like Eigenjesus can be useful, even if it cannot deduce terminal values--still holds.