Gilbert Harman's original formulation requires that moral facts add explanatory power beyond physical-psychological facts, but this standard is not met by the replacement argument itself.

?Rate how convincing each reason is below to see the overall strength.

No one has weighed in yet. Be the first to share reasons for or against this statement.

Gilbert Harman(the statement references his specific philosophical standard): An American philosopher who developed influential ideas about how we think about morality and language, particularly the theory of eliminativism.
Moral facts: Facts about goodness, reasons, and obligations; normative facts about what matters.
Physical-psychological facts(as the alternative explanation that might work without moral facts): Facts about the material world (physics, chemistry, biology) and facts about minds and behavior (psychology), as opposed to facts about morality.
explanatory power(Socratic definition): The capacity of a defining feature to explain why instances of the thing defined have that property (e.g., why reverent people or actions are reverent).
replacement argument(in ethics and philosophy of action)

Based on where you are in your exploration