Explore the world of applied algebraic topology through an in-depth interview with renowned mathematician Frédéric Chazal, conducted by Steve Oudot. Delve into Chazal's groundbreaking work, research insights, and contributions to the field during this engaging 78-minute conversation. Gain valuable perspectives on the applications of algebraic topology in data analysis, machine learning, and other cutting-edge areas. Part of the Applied Algebraic Topology Network's interview series, this discussion offers a unique opportunity to learn from one of the field's leading experts and understand the current state and future directions of applied algebraic topology.