In the first Reith Lecture of his series 'Minds, Brains and Science', John Searle, Professor of Philosophy at the University of California, Berkeley, examines the so-called 'mind body problem'. Searle uses this paradox of the conscious mind verses the scientific brain to explore our understanding of the world.

In this lecture entitled 'A Froth on Reality', Professor Searle considers how humans think of themselves as cognisant, free, rational beings but science tells us we are a chance occurrence, created in a world that consists entirely of mindless physical particles. From this viewpoint Professor Searle explores the question how can an essentially meaningless world contain meaning?