 However, the logic of Benatar’s theory has been challenged (Bradley 2010) and a theory of welfare that denies the possibility of lives worth living is quite counter-intuitive (Ryberg 1996a). Fehige’s theory, for example, implies that a life of one year with complete preference satisfaction has the same welfare as a completely fulfilled life of a hundred years, and has higher welfare than a life of a hundred years with all preferences but one satisfied. Moreover, the last life is not worth living.