The discoveries the Simon Donaldson made in the early 1980s about four-dimensional spaces 'stunned the mathematical world', his research adviser Michael Atiyah later recalled. Donaldson was using the physicists' theory of particle interactions to study space itself – with truly remarkable results. In this podcast, Donaldson recalls how he became interested in physics, remembers his most famous discoveries and looks forward to an increasingly close relationship between mathematicians and physicists. This is one of a series of interviews given by world-class experts to Graham on the themes he explores in his new book The Universe Speaks in Numbers. For information regarding your data privacy, visit acast.com/privacy