Modernism valued master narratives of history and progress through science. It saw a unified self and social order. Postmodernism rejects totalizing theories and master narratives in favor of local narratives and fragmented identities. It sees culture as pluralistic and questions concepts like authenticity, originality, and the hierarchy of high versus low culture. Postmodernism embraces play, irony, hybridity and indeterminacy over modernism's earnestness and determinism.