SERIES Living Fully in the Math World Means Threading the Needle Focus, commitment, and insight resulted in a “once in a century” proof. Hong Wang is now just the third woman to win a Fields Medal. Hong Wang, pictured here working on a new article at the Institute for Advanced Scientific Studies (IHES) in France, is just the third woman to receive a Fields Medal in the award’s 90-year history. Julien Pebrel/M.Y.O.P. Introduction One might imagine that, for a mathematician, proving a monumental t...