A new history of ideas presented by Melvyn Bragg but told in many voices. Each week Melvyn is joined by four guests with different backgrounds to discuss a really big question. This week he's asking 'What does it mean to be me?' Helping him answer the question are philosopher Barry Smith, neuropsychologist Paul Broks, writer A L Kennedy and philosopher Jules Evans. For the rest of the week Jules, Paul, Alison and Barry take us further into the history of ideas about the self with programmes of their own. Between them they will examine Descartes idea 'I think therefore I am', ask what role memory plays in ideas of the self, discover how stories and myths burrow into our unconscious, and ask whether there's more to existentialism than wearing black and pondering deep thoughts. Producer: Melvin Rickarby.