[theapportioner]

I'm not going to read all this... if some of what I say has already been discussed, I apologize.

First, I think we ought to disambiguate the problem into several distinct questions. This is one area where ambiguity creates confusion.

1. What is the origin of morality?

2. What is the justification for morality?

3. What is the best explanation for morality?

A theory that best explains the origins of morality may not provide the best justification of, or explanation for it.

For instance, evolutionary psychology may provide a sound account of the origins of morality but not the best explanation for it, perhaps because it fails to capture the richness of our moral life.