What is a textbook chapter that seems to drone on and with no end in sight?

The chapter titled "The History of Quantum Entanglement" in the advanced physics textbook "Quantum Phenomena and Their Applications" seems to drone on with no end in sight. The chapter begins with an overview of the concept of quantum entanglement, but then quickly delves into a highly technical and mathematical discussion of the various formalisms used to describe entangled systems. The chapter goes on and on, with no clear structure or organization, and it becomes increasingly difficult to follow. The explanations lack any real-world examples or applications, making it hard to see the relevance of the material. Overall, this chapter feels like an academic exercise that has lost touch with its purpose of educating readers.