lukeprog gave a list of metaethics questions here:
What does moral language mean? Do moral facts exist? If so, what are they like, and are they reducible to natural facts? How can we know whether moral judgments are true or false? Is there a connection between making a moral judgment and being motivated to abide by it? Are moral judgments objective or subjective, relative or absolute? Does it make sense to talk about moral progress?
Most of these questions make no sense to me. I imagine that the moral intuitions in my brain come from a special black box within it, a "morality core" whose outputs I cannot easily change. (Explaining how my "morality core" ended up a certain way is a task for evo psych, not philosophy.) Or I can be more enlightened and adopt Nesov's idea that the "morality core" doesn't exist as a unified device, only as an umbrella name for all the diverse "reasons for action" that my brain can fire. Either perspective can be implemented as a computer program pretty easily, so I don't feel there's any philosophical mystery left over. All we have is factual questions about how people's "morality cores" vary in time and from person to person, how compelling their voices are, finding patterns in their outputs, etc. Can someone explain what problem metaethics is supposed to solve?
He's asking something like: 'given that we know living things are built from atoms, what specific questions are you trying to answer?'. He wants answers (to the question of living things) that specifically mention atoms like 'I want to know 'what specific configurations of atoms are commonly used in living things?'' which would have a corresponding answer of 'well there 20 amino acids are commonly used, here are their structures'.
Then that would be the wrong way to go about it, and part of (I suspect) why anti-reductionist ideologies become popular among human minds. From the fact that atoms (or quarks) govern social interaction and preferences, it does not follow that the best explanation/model directed at a human will speak at the level of atoms, or explicitly reference them.
Rather, it need only use higher level regularities such as emotions, their historical basis, their chemical mechanisms, etc. The mechanisms for moral intuitions almost certainly act in a way that is not dep... (read more)