  Moore’s argument has a great deal of intuitive force, but has been subject to various objections, and it is not clear that all of them can be answered. One of the first was that it just begs the question against the naturalist. Moore only considers a few very crude naturalistic definitions of goodness, and concludes from these that all naturalistic definitions will fail the open question argument. Frankena (1939) objected that this was premature. We cannot know in advance that every naturalistic definition will fail this test. We just have to wait and consider the proposals. To conclude from a few crude examples that all naturalistic definitions will fail is just bad induction.