Elie has been a doctoral student at the Laboratoire d'Anthropologie Sociale du Collège de France since November 2020. In the continuity of interdisciplinary studies in Human Sciences  at the University of Oxford (BA, 2019) and in health anthropology at University College London (MSc, 2020), Elie uses social anthropology and the ethnographic method to specify the categories that make sense in the biological evolution of humans, as well as techniques for producing knowledge around this evolution. His thesis project, co-supervised at the Institute of Biology of the ENS – PSL by Régis Ferrière, concerns the way in which ecologists seek to model life in closed systems such as Ecotrons or Biosphere 2 in Arizona. .