LanDroid wrote:Since morality doesn't come from the physical universe or a supernatural power and isn't objective, where do you think it comes from?
This theme of "objective morality" is one I mentioned in the thread started recently on Nagel Mind and Cosmos. Nagel maintains that morality is objective. I consider that to be a category mistake, as do the critical authors quoted in that thread. Wishing does not make it so. Nagel is guilty of Tinkerbell philosophy.
The fundamental categories of thought are facts and values. Facts are objective truths, while values are subjective opinions. Morality is a statement of subjective values, and therefore is intrinsically non-objective.
If we say our personal morality is objective, we assert our personal values are universal and absolute. That has historically proven to be a socially compelling stratagem to spread moral views. However, compelling does not mean objective. All morality is premised on value axioms, such as that flourishing is good. Axioms are assumptions that lack the factual categorical nature of objective statements.
We may think the universe would care if humans went extinct, but we have no factual way to know, so this metaphysical speculation is not objective. It is an assumption without evidence.
Systematic morality requires that we identify and agree on fundamental axioms, to construct what is termed axiological ethics. For example, moral axioms could include that human flourishing is good, or that care is the meaning of being. A range of Biblical ideas function as moral axioms, such as that we should do unto others as we would have them do unto us, that we should love our enemies, that the least of the world are first in the kingdom of God, and that the wrath of God is against those who destroy the earth.
None of these are any more "objective" than the claim that parallel lines never meet. Moral axioms are ideological constructions, and do not need us to speculate about the existence of some outside power to validate them, any more than Euclidean geometry requires light to travel in straight lines. Evidentiary analysis of our own evolutionary interests is the best validation for our moral beliefs.
Within the constructed world of the system, ethical statements can be considered true, but objectivity is a property of reality, and we cannot say that any moral axiom is objective and absolute except against the reference of some interest, such as human flourishing. We can say 'in order for humans to flourish we should be good'. That is different from saying that objective morality requires us to be good.