  Needless to say, these considerations are not decisive, and those who see morality as a kind of convention have a variety of plausible ways to address the worries mentioned above. As a result, the view remains attractive. Still, many — even many who think an appeal to convention is essential to making sense of morality — think that the proper account of morality cannot be a matter of conventions “all the way  down.”[4]   But that does not mean that they think that the standards that serve to justify the demands of (some) conventions are mysterious. Some, for instance, argue that what makes a convention good, and so serves to justify its demands, is its contribution to overall happiness, while others see the measure of conventions in their ability to advance the interests of each considered singly, and still others maintain that the value of conventions is found in their capacity to secure the approval of those who consider them impartially. On all such accounts, value is convention-independent, but it is nonetheless metaphysically non-mysterious. Each of these accounts portrays value as, at bottom, a familiar, completely natural, feature of the world.  Moreover, while (on these accounts) particular claims concerning value will prove hard to establish and controversial, there is no special puzzle about what we would be trying to discover or what would count as relevant evidence. 