In this engaging discussion, Swiss physicist Christophe Rossel, former president of the European Physical Society and IBM Research scientist, explores how physics can drive societal progress. He delves into the ambitious 'EPS Grand Challenges' book, highlighting how 115 physicists tackle pressing issues like climate change and health crises. Rossel emphasizes the need for clear science communication and interdisciplinary collaboration, revealing how physics intersects with global challenges and can shape a sustainable future.