The goal or criterion of "authenticity" for judging a change in art or ethics or culture is notoriously vague and can be dangerous. This essay proposes a version of authenticity based on a quasi-Hegelian version of the process of development rather than on any specific patrimony to be preserved. Oddly enough, the proposed criterion has many similarities with one proposed by a staunch anti-Hegelian, Gilles Deleuze
