The rise of obfuscation and philosophical posturing as the core argumentational strategies in architectural theory is a remarkable and very little studied phenomenon of twentieth-century architecture. The phenomenon started in the 1970s and since it eventually came to dominate architectural writings in the decades that followed, one can talk about the Obfuscatory Turn in architectural thinking during the era. In my recent book Architectural Principles in the Age of Fraud (San Francisco: Oro Books, 2022) I have analysed the phenomenon and traced its history. In this paper I want to present a synthetic summary of the theses of that book and to invite a discussion about the origins of the Obfuscatory Turn. Various versions or elements of this paper have been presented as lectures the University of Notre Dame, Belgrade University, Turin Polytechnics, Technical University Berlin, and Manchester University, as well at Conferences of European Architectural History Network (Madrid, 2022), the TAG24 Conference (online, 2024) and Beauty and Ugliness Conference (Oslo, 2024).