Peter Holmes wrote: ↑Thu Aug 02, 2018 5:59 am
So, to clarify, you can't show how a moral assertion expresses a falsifiable factual claim with a truth-value - but you don't mind that you can't.
It's not just me; it's you too, and everyone else who cannot falsify such claims. "Falsification," as per Popper, is nothing to do with value judgments, whether they are true ones or not. Polanyi, in particular, is very illuminating in this regard.
You think it could be true but unfalsifiable (but then how is it verifiable?),
It's not, per se "verifiable," if we use that word in its technical, philosophically accurate sense. Do you mean, "How do we decide if it's true or not?" because that's perhaps the more obvious question. The idea of "verifiability," as it is philosophically established, has to be abandoned not just for value judgments but for all empirical (i.e. experience-based and scientific) questions as well.
or it could be probabilistic (but then, how is the probability that slavery is wrong calculated?).
Like normal empirical questions, it is something one has to know probabilistically. But things that are highly probable are unquestionably more reliable to believe than things which are low in probability. However, the probability itself is a measure of what
we know, not a measure of the absolute truthfulness of anything. Low probability things can turn out to be true.
The problem here is that you're conflating two different questions. One is, "Is morality objective," (factual) and the other is "Do we have certain knowledge of morality?" (a thing we can have only probabilistically) Clearly, they are quite different questions. The first is essentially your OP question. The second can only be decided afterward.
And, to clarify, you can't show how the source of a supposedly factual assertion has any bearing on its truth-value: this is true because I say it is. But, again, you don't care that you can't.
Incorrect. But I've tried to say the point twice already. I'll try one last time. When a source and a fact are guaranteed to be 100% synchronized, you can look at either the source or the fact for the truth. But this only applies to sources that are 100% reliable -- and really, there can be only one of those, in relation to morality.
In sum, you have no justification for your belief that morality is or even could be objective.
Incorrect. The justification would be the existence of a Supreme Giver of morality. In such a case, morality would be objective.
I'm wondering if, perhaps for this reason, you seek consolation in the ridiculous thought that, if there are no moral facts, our moral judgements have no possible justification.
Interesting. You now call "ridiculous" a statement you yourself made earlier. It's
you who claimed there are no moral facts -- not I. And it's your worldview that assures you of that, not mine.
So that we can have no reason to believe that slavery, rape, genocide, the oppression of women and homosexuals...are morally wrong.
Ah. Is this, in a roundabout way, your answer to my last question? Are you prepared to follow moral subjectivism to this logical conclusion it compels?
I'll ask it again, just in case.