Postmodernism
"While encompassing a broad range of ideas, postmodernism is typically defined by an attitude of skepticism, irony or distrust toward grand narratives, ideologies and various tenets of universalism, including objective notions of reason, human nature, social progress, moral universalism, absolute truth, and objective reality. Instead, it asserts to varying degrees that claims to knowledge and truth are products of social, historical or political discourses or interpretations, and are therefore contextual or socially constructed." Wikipedia article.
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