Pablo Jensen is the head of the Institut Rhônalpin des Systèmes Complexes (IXXI) at ENS-Lyon. As a physicist with a PhD in experimental condensed-matter physics, he worked on the modeling of nanostructure growth before turning to a practice more on the fringes of social and natural sciences. In an ongoing collaboration with Bruno Latour’s team at Sciences Po’s Médialab in Paris, he is exploring the use of social data to improve our knowledge of the social world. He has created an interdisciplinary program on the modeling of complex systems, gathering students from biology, computer science, mathematics, and physics. He serves as a national project manager on the interdisciplinarity between physics and social sciences at Centre National de la Recherche Scientifique (CNRS). He has published a science popularization book on the physicist’s view of materials and is a columnist for several magazines, including Le Monde diplomatique.