(January 9, 2016 at 6:26 pm)Thumpalumpacus Wrote: You're forgetting another possibility -- that morality is a human construct.
Human construct? That rabbit hole can get pretty deep if you aren't careful. Some people also say that the truths of mathematics are human constructs too. Others go even further, saying that universals are conventions based on similar physical properties. Others go still further saying that the notion of physical existence is a human construct too and that all that remains are arbitrary collections of properties. Some go even further than that. They think that personal identity is constructed. Eventually you get to the point where everything in the entire universe is a construct of a construct constructed by nothing.