David Eagleman, is interested in the possibilities that ‘grey areas’ hold. A Possibilian, he argues, is one who is interested and comfortable with our present position of vast ignorance and one who can celebrate uncertainty.

In a world where we are supposed to have all the answers, all the time, David preaches the virtues of being unsure, and shows how and why it is possible to enjoy a clear-thinking, dogma-free awe for the mysteries around us.

David Eagleman is a neuroscientist and a fiction writer. During the day, he directs the Laboratory for Perception and Action and the Initiative on Neuroscience and Law at Baylor College of Medicine. He is best known for his work on time perception, synaesthesia, and neurolaw. At night, he is a fiction writer. His debut work of fiction, 'Sum: Forty Tales from the Afterlives', became an international bestseller and is published in 22 languages.

This secular sermon took place at Conway Hall on Sunday 23 May 2010

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