If moral properties reduce to natural properties, then an evolution calibrated to natural survival-relevant features is ipso facto calibrated to moral features, undermining the claimed gap.
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Characteristics or traits that help an organism stay alive and reproduce, like speed, strength, or the ability to find food.
The is-ought gap (or Hume's gap)(ethics/metaethics)
The philosophical puzzle that facts about how things *are* in nature don't automatically tell us how things *should* be morally—knowing what evolution made us do doesn't tell us what we ought to do.
moral properties(Disputed between non-cognitivists (who deny or remain silent on their existence) and their critics)
Properties such as badness, goodness, or evil that events or states of affairs may possess, and in virtue of which those events are bad, good, or evil
natural properties(Used to contrast with moral properties in both Kant's and Moore's arguments)
Properties that are known through experience (empirically accessible properties)