wolly.green said:
Ah, but why should "difficult to vary" be isomorphic to "mathematically rigorous"?
Oh it most certainly isn't -- I was just saying that seems to be
one instance of "difficult to vary" -- it seems to pretty reliably render scientific explanations difficult to vary. The task of finding an objective morality is, to me, tantamount to finding something similarly reliable in the moral, as opposed to physical, sphere!
That we can reliably map physical --> quantitative is incredibly powerful, and we'd want something at least almost as powerful.
I personally am almost entirely unsympathetic to culture-based morality. I'd rather say there's zero morality than say there's culture-based morality. Why? It seems to me that, if all we're saying is we can come up with different logically consistent ways of acting, well sure -- we can also concoct tons of totally random logically consistent systems.
One could argue that this is actually referring to values, not morals. Maybe morals and values might be different?
Now this is
exactly what I've come to, and
exactly how I'd respond to the thing you were responding to. In particular, I think our sentiments do refer to something -- at least psychological attitudes, and that one can form different value systems based on them, and these value systems will actually refer to something that can be said to exist
relative to a psychology. A culture is something like a collective psychology, so the same argument applies there.
I'm much more comfortable saying
values might be conferred/imparted in many different ways (that one might adopt different premises/criteria to impart value based on) than saying that there are many different ways to discern the moral rightness/wrongness of, say, murdering.
With morality, while there may be some subjective component (a compassionate response), this no more seems to render morality subjective than does the subjectivity of my experience of light compared to yours render physics subjective -- the point is there is a rigid map from that sensible feeling to a mathematically rigorous description which uniquely characterizes the phenomenon I sensed, which can be conveyed even to someone who is, say, blind.
This is why plenty of people who struggle with the affective aspects of compassion can for abstract reasons still decide to behave morally.
Justice can be understood without the affective aspects of compassion, but experiencing them can help internalize it in a more intuitive way
Not
all spheres of value-judgment have to be subjective by the above view, BTW, just I think there are reasonable value systems one can form which are a balance of reasoning and sentiment rather than almost entirely objective reasoning.