07 Nov '16 23:54>1 edit
Originally posted by KellyJaySince you see the distinction at issue, then I presume you can see the difference between (a) a mental faculty that provides us with moral views that purport to pick out the moral facts and (b) moral facts themselves. If Joyce's account explicitly deals with evolution of (a), then why exactly would that thereby commit him to a non-static view (or any particular view) regarding the nature of (b)?
If you are suggesting that the discussion is really not about morals but our abilities to
understand them, I see the distinctions, but don't believe it presents a difference between
what is right and wrong and our abilities to grasp it. If morals are a reality and our ability
to grasp them reside in our physical makeup, than does that mean our limitation ...[text shortened]... e sight is as bad as mine is now and now get
winded moving from the couch to the kitchen table?
And what exactly is special about morality in this respect? To continue with the example Twhitehead introduced, if I claim that our ability to enumerate and do basic math evolved, are you going to counter that I am thus committed to some non-static view of addition tables?
If morals are a reality and our ability
to grasp them reside in our physical makeup, than does that mean our limitations and
morals are true if we have the ability to see 20/20 and run a mile in under 4 minutes, but
they would be different if everyone's eye sight is as bad as mine is now and now get
winded moving from the couch to the kitchen table?
It certainly is reasonable to think that moral reality depends in many ways on our physical makeup. Perhaps it would be morally wrong of a human to sucker punch another in the gut for no good reason. But, if down the road humans evolve to have some sort of exoskeleton that makes them impervious to strikes in the midsection, then maybe the moral reality will change. Regardless, one could argue that there is an underlying general moral principle that does all the work here and which remains invariant, such as that one ought not bring gratuitous harm on another.
Generally, though, the answer to your question is no, since the idea that our ability to grasp moral reality depends on our physical makeup does not imply that morality reality is simply determined by our physical makeup, let alone by just any old aspects of our physical makeup. You claim that you understand the distinction I brought up, but these sorts of questions don't really back you up on that. Again, one can hold both that our mental capacity with respect to some realm depends on our physical makeup and that our physical makeup is subject to evolution -- all without being thereby committed to some meta-view on the specific nature of that realm.