Post-structuralism is a philosophical movement that questions the objectivity or stability of the various interpretive structures that are posited by structuralism and considers them to be constituted by broader systems of power. Although different post-structuralists present different critiques of structuralism, common themes include the rejection of the self-sufficiency of structuralism, as well as an interrogation of the binary oppositions that constitute its structures. Accordingly, post-structuralism discards the idea of interpreting media within pre-established, socially constructed structures.