Jack Heal judges suggestions by Hayley Pye, Maddy Coke and the Omni tent audience, Einstein's Garden at the 2016 Green Man festival. Simon Watt is in the chair as ever. The panel discuss whether we need leaders, a blood test that can reveal every virus you've ever had, and whether we actually need bodies any more at all.
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Our theme music was written and performed by Laurence Owen. Graphics by Theo Weedon, web design by Ian Bridgeman and support from the Wellcome Trust. The producer is Rachel Wheeley.