 This rehabilitation of Sidgwickian hedonism has also involved a recognition of the importance of the hedonimetrics of F. Y. Edgeworth, the brilliant economist who was a slightly junior contemporary of Sidgwick’s and one of his most enthusiastic philosophical disciples, though one whose work has until recently been largely ignored in philosophical commentary on Sidgwick (Edgeworth 1877 and 1881 [2003]). Edgeworth’s approach has been revived in economics by such figures as Kahneman (2011), and the convergence of economic and philosophical (and neurobiological) interests on this point suggests that Sidgwickian hedonism represents a new growth area in ethics. But it does seem that in key respects Sidgwick’s account remains superior to these more recent developments, which rely on a rather crude claim about pleasurable consciousness as a state that a subject wishes to prolong.