Élie During is Associate Professor of Philosophy at University Paris Nanterre. He specializes in contemporary French thought with a focus on the philosophical and wider cultural implications of the concept of simultaneity at the crossroads of science, metaphysics, and the arts. His publications include critical editions of Bergson and Bachelard, studies of time and relativity theory, essays on images and retrofuturism, and a work of fiction inspired by Glenn Gould. He has also co-edited volumes on the metaphysics of realism, on experimentation in contemporary art, and on Deleuze’s conceptual personae. Forthcoming are L’Image-volume : scènes de la vie augmentée (Éditions MF, 2026) and a meditation on Bach’s Art of Fugue (Vrin, 2027).