This article reconstructs Jean-François Lyotard’s theory of the sublime in contemporary art, focusing on his claim that such art ‘presents’ the unpresentable, and tracing its origins in Kant’s account of the sublime. I propose that Lyotard identifies a difficulty concerning Kant’s account: to understand why the disparate elements in the experience of the sublime should be synthesized to form that experience. Lyotard recasts this difficulty as a pragmatic problem for artistic practice – how to ‘testify’ to the absolute in a (...) non-absolute, sensibly perceivable object – that can be understood to drive avant-garde artistic experimentation. (shrink)