Are we done?

Margaret Heffernan explores how art can help us deal with uncertainty in our lives. How does an artist know when a piece is finished? Or more precisely, when they should stop work and launch it into the world? Margaret Heffernan is a writer and entrepreneur, author of the award-winning 'Uncharted: How to Map the Future'. Here, she takes inspiration from artists who embrace uncertainty.Producer: Mary Ward-Lowery