In this interview, Anne Fagot-Largeault discusses with Thierry Bardini her recollections of the life and work of French philosopher Gilbert Simondon (1924–1989). The discussion covers Simondon’s theory of individuation and considers its influences on contemporary thinkers such as Gilles Deleuze and François Laruelle. Fagot-Largeault situates Simondon’s thinking within the broader context of 20th-century biological research and the development of life sciences. Informed by her personal association and experiences working with Simondon, her reminiscences shed light on the unique character of Simondon as a person and as a thinker.