From writing to art, the intense to the light hearted, imagination transports us to untold fantasy worlds. Yet Picasso claimed "everything you can imagine is real". Should we dismiss this as the overblown claims of a celebrity artist, or might what we take to be reality actually be a product of the power of imagination?

Literary critic Terry Eagleton, New York University philosopher Paul Boghossian and Chocolat author Joanne Harris find places where reality ends and the power of imagination begins.

From the Institute of Art and Ideas collection.