Novelist Will Self in conversation with political philosopher John Gray on the religious, philosophical and fantastical traditions that question the very idea of human freedom.

This Guardian Members event took place on 18 March 2015 in London. John Gray’s new book The Soul of the Marionette meditates on everything from cybernetics to fairground marionettes, and asks whether human freedom is a comforting delusion, or whether enormous forces - biological, physical, metaphysical - constrain our every action.

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