
Why Theory Seminar 18
25 snips
Nov 9, 2025 Dive into a rich analysis of Lacan's Seminar XVIII, exploring its baroque structure and implications for discourse. The hosts dissect Lacan’s interpretations of prior work and his veiled critiques of Derrida. They unravel the role of Poe's 'The Purloined Letter' in illustrating the distinction between letter and signifier. The conversation shifts to jouissance, the flaw of instinct in the superego, and how Lacan's ideas challenge conventional understandings of power and enjoyment. A fascinating journey into Lacan's evolving thought awaits!
AI Snips
Chapters
Books
Transcript
Episode notes
Lacan Rewrites His Own Trajectory
- Lacan's Seminar 18 retroactively frames a discursive turn he had not fully developed earlier.
- Ryan and Todd argue Lacan often rewrites his past ideas as if he'd always intended them.
Writing As Logical Material
- Lacan uses the Purloined Letter to privilege writing as a logical, material operator rather than mere signification.
- Todd highlights Lacan's move toward a logic of letters over intuitionist spatial mathematics.
The Letter As Structural MacGuffin
- The Purloined Letter functions as a MacGuffin: its content doesn't matter, only how it reshapes symbolic relations.
- Dupin's discovery reveals how objects curve the symbolic, exposing police blind spots tied to the imaginary.





