Postmodern philosophy is a broad intellectual movement that emerged in the mid-20th century, challenging traditional ideas about knowledge, truth, and meaning. It often questions the existence of objective reality and emphasizes the role of language and culture in shaping our understanding of the world. Key figures include Jacques Derrida, Michel Foucault, and Jean-François Lyotard. This philosophy is characterized by skepticism towards grand narratives or universal truths, suggesting that knowledge is constructed through social contexts and power dynamics. It encourages a pluralistic approach, recognizing multiple perspectives and interpretations rather than a single, definitive viewpoint.