painting: Georges Braque, Woman with a Guitar (1913)Image: Mexico City slumModernity is remarkably hard to define or capture. We might try this ostensive definition: it is the culture, mental framework, and social reality of the world created by the industrial revolution, mass society, urban life, and mass literacy and communication. It is the world of anonymous social relations, the market as a central social reality, the rational-bureaucratic state, and mass public opinion. It is what came after "the world we have lost" (Peter Laslett's evocative phrase in The World We Have Lost: England Before the Industrial Age) -- the pre-modern world of direct, face-to-face social relations, powerful religious beliefs, traditional regulation of village...