François Képès is a cellular biologist and research director at the Institute of Systems Biology and Synthesis at Genopole d'Evry. His aim is to better understand the functioning of living systems, especially micro-organisms (bacteria or yeasts), and to influence their genome in order to call them a function. He is the author of many popular works, including Synthetic Biology, stronger than nature? (La Biologie de synthèse, plus forte que la nature ?).