  Another objection is that the open question argument does not tell us anything distinctive about the concept of goodness, but is simply an instance of the paradox of analysis. According to this paradox any true analysis will be uninformative, because it will be reducible to a tautology, and any informative analysis will be false, because it can’t be reduced to a tautology. According to earlier versions of what Moore called ‘the open question argument’, and on one interpretation of Moore’s argument, the reason that good cannot be analysed in naturalistic terms is that it turns what sounds like a substantive moral claim, e.g., that pleasure is good, into the empty tautology that pleasure is pleasure. But then this looks like a particular instance of the paradox of analysis. To see this, consider the following analysis of the concept ‘mammal’: