Terence Cuneo: If moral facts don’t exist, then neither do epistemic ones. (I assume here that these facts are as realists understand them.) The argument’s next premise is that epistemic facts exist. Some beliefs and practices of inquiry are irrational, or justified, or supported by epistemic reasons. The argument for this claim is that, when we consider the price tag for going antirealist about the epistemic domain—by, say, denying that any beliefs could be irrational or justified—we see that it’s very high.'
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