Gregory Lewis investigates long-run impacts and potential catastrophic risk from advancing biotechnology at the Future of Humanity Institute. He is a doctoral student in Michael Bonsall’s mathematical ecology group at the University of Oxford. Previously, he was an academic clinical fellow in public health medicine, where he won the Michael O’Brien prize, and before that a junior doctor. He holds a master’s in public health (with distinction) and a medical degree, both from the University of Cambridge. Prior to reading medicine, he represented Great Britain in the International Biology Olympiad.