What is an ideology? Between knowledge and belief, the ideas that make up our mental environment have a political relevance. The framework of thought that is emerging today seems to radically challenge “the world before”. The deconstruction of reality, post-humanism, new identities and “decolonialism” are just some of the themes where we see Marxist-inspired utopian ambitions transposed into our lifestyles. The desire to create a “new man” and the deconstruction of citizenship call into question a democracy that suddenly depends on its validation by the media and social networks. Under the cloak of anti-power, new powers are emerging unchecked. With the methodological precision of a sociologist, Shmuel Trigano analyzes how these different ideological configurations fit together to form a coherent whole. The challenge: to map postmodernism as a form of thought that escapes our awareness.