This lecture explores the concepts of dystopia and utopia, focusing on the differences between them in terms of sign systems, narrative structure, and societal implications. The instructor delves into how dystopias invert utopias, highlighting the narrative nature of dystopias and the destructive elements of utopias. Through examples from literature and film, the lecture analyzes how these fictional worlds reflect and critique real-world societal structures. The discussion also touches on the role of propaganda in shaping societal beliefs and the ways in which dystopian narratives can offer insights into our own reality, challenging us to reconsider familiar aspects of society through a critical lens.