"Of this image of time, Deleuze retains (in L'image-temps) the continuity of "sheets of past" with the "peaks [pointes] of present," implying the cone is a vortical continuum; each sheet is a disk but also a winding stair continuing up and around in the "next" one, according to the Bergsonian formula of the flux, "interpenetration without succession."

Peter Canning, from Gilles Deleuze and the Theater of Philosophy, p.80.