Assignment Task:
Mackie writes: "[T]he denial of objective values will have to be put forward not as the result of an analytic approach, but as an 'error theory', a theory that although most people in making moral judgements implicitly claim, among other things, to be pointing to something objectively prescriptive, these claims are all false." (851).
Explain how the argument from relativity supports Mackie's error theory. What is an example of variation in moral codes? What is the difference between scientific disagreement and moral disagreement? And lastly, why does Mackie think moral variation speaks against 'objective values'?