This podcast episode explores the often misunderstood and underrated subject of trigonometry. It highlights the practical applications and significance of trigonometry in various fields such as science, engineering, and space exploration. The episode also delves into the role of triangles in accurate positioning systems like GPS and 3D graphics. Furthermore, it follows the story of Matt's passionate campaign to fix geometrically impossible street signs in the UK, showcasing his commitment to geometric accuracy in everyday life.