Today's post, Is Morality Preference? was originally published on 05 July 2008. A summary (taken from the LW wiki):
A dialogue on the idea that morality is a subset of our desires.
Discuss the post here (rather than in the comments to the original post).
This post is part of the Rerunning the Sequences series, where we'll be going through Eliezer Yudkowsky's old posts in order so that people who are interested can (re-)read and discuss them. The previous post was Moral Complexities, and you can use the sequence_reruns tag or rss feed to follow the rest of the series.
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I do think moral and scientific reasoning are far less asymmetric than is usually assumed. But that doesn't mean I think there are no asymmetries at all. Asymmetries exist, and perhaps they can be leveraged into an argument for moral anti-realism that is not also an argument against scientific realism. So I wouldn't say it's inconsistent to be a physical realist and a moral anti-realist. I will say that in my experience most people who hold that combination of positions will, upon interrogation, reveal an unjustified (but not necessarily unjustifiable) double standard in the way they treat moral discourse.
I don't think it is a double standard. Empiricism admits the Problem of Induction, but says that the problem doesn't justify retreating all the way to Cartesian skepticism. This position is supported by the fact that science makes good predictions - I would find the regularity of my sensory experiences surprising if physical realism were false. Plus, the principle of falsification (i.e. making beliefs pay rent) tells us what sorts of statements are worth paying attention to.
Moral reasoning seems to lack ay equivalent for either falsification or predicti... (read more)