In the section that begins “Hegel’s concept of the idea,” we read about the various determinations of the history of the idea that are encapsulated in Hegel’s absolute self-knowing spirit and told that all post-Hegelian philosophies are mere submissive iterations of this core concept. We then discuss how this idea of the idea plays into various shifts from liberal to post-liberal, touching on diagnostic dynamics, politicized art, and a new relationship between perceptio and appetitus.