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beverlymantle's avatar

Great essay.

I've always found moral realism to be counterintuitive and the syllogistic arguments in favor of it unconvincing. Also, the recent growth in the popularity of notions such as so-called "effective altruism" strikes me as rather strange.

I don't have any formal training in philosophy (except logic & axiomatic set theory classes, if that counts), but I've read a bit about it, so I suppose I have some idea of what seems wrong about moral realism.

In particular there seems to be a semantic issue at play. Presumably, the existence of an epistemically objective morality means that there's some 'measure' by which actions or states of affairs involving people can be determined to be moral or otherwise.

I can't think of a better measure other than something like 'maximal goodness'. But what do we mean when we talk about goodness? It seems to me that people don't mean exactly the same thing when talking about goodness; i.e. the intension differs between speakers. 'Goodness' can in principle refer to any set of objects, properties, predicates, etc., and in general, people don't seem to be (indirectly) referring to the same objects, properties etc. when speaking of 'goodness', let alone in such a fine grained way as to allow them to have a shared definition of goodness. E.g. such and such action is preferred over some other action in literally *all* contexts or states of affairs.

So there doesn't seem to be such thing as commensurable goodness, in the sense that two competing notions of goodness are simultaneously maximally good/preferable for two different people *and* qualitatively different. Therefore, they can't be commensurable.

Furthermore, even if there were some universally good action that everyone hypothetically agreed on, it's not obvious to me that it could be non-arbitrarily justified: Why is it good? Because we all agree that it's good. I suppose this would be in a sense objective, but not exactly rational, which goes against what at least most moral realists seem to be getting at.

Pelorus's avatar

A stronger version of the criticism in #16 is that in the context of philosophy seminars, undergraduates often take a reflexive position of moral relativism because they don't have the conceptual tools and conviction at that time to justify the moral judgements that they continually make when outside the seminar room. They don't yet have a coherent metaethics and what they can say when forced to justify themselves is much less than what they can say in their day-to-day life. It is no surprise then (as seen with #15 and #17) that many of these students desist after they becoming better at philosophising, just as they commonly stop being solipsists and radical sceptics about knowledge.

Or another way to put it, is that moral relativism as actually commonly encountered is usually less coherent and strongly held than the kinds of considered relativisms that people like Lance Bush would argue for. Lance is right that this isn't an argument against the best versions of the theory, though it must be admitted that people commonly encountered espousing relativism don't tend to hold those versions.

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