How it is possible for imagination to have practical social effects? The great potential size of human societies, in contrast to those of other primates, is due to a kind of shared imagination of which kinship and religion are important examples, says Maurice Bloch, Emeritus Professor of Anthropology at the London School of Economics. Bloch says that the shared imaginary emerges in normal life at certain moments yet is still governed by the potential of imagination. The lecture is illustrated by Bloch’s experience of an isolated village in Madagascar. [Show ID: 33941]