A selection of programmes from last year's Free Thinking Festival.
Corin Throsby gives a talk on the fan mail Byron received.
Germaine Greer questions the idea of freedom at the 2011 Free Thinking Festival.
Philip Dodd chairs a debate on obsession with change, with Molly Dineen and Giles Fraser.
Rana Mitter chairs a debate about the Luddite movement, to mark its 200th anniversary.
A talk in which landscape architect Charles Jencks calls for a new cosmic art.