How important is big data for business and society?
320 times greater than the store of knowledge kept in the legendary Library of Alexandria, and representing a mass of data which, if stored on DVDs stacked on top of each other, would cover five times the distance from the Earth to the Moon and back again: it was in these terms that participants at this national roundtable described the wealth of knowledge that forms the preserve of contemporary man, and which, evocative analogies aside, comprises the extraordinary body of information commonly known as big data.