In this sense anarchism implies a universal decentralization of authority, and a universal simplification of life. Inhuman entities like the modern city will disappear. But anarchism does not necessarily imply a reversion to handicraft and outdoor sanitation. There is no contradiction between anarchism and electric power, anarchism and air transport, anarchism and the division of labour, anarchism and industrial efficiency. Since the functional groups will all be working for their mutual benefit, and not for other people's profit or for mutual destruction, the measure of efficiency will be the appetite, for fullness of living.