The discussion centers on whether the textbook "Misner, Thorne, and Wheeler" (MTW) is sufficient for understanding tensors necessary for general relativity (GR). Participants express that MTW may not be the best starting point due to its complexity, suggesting alternatives like Sean Carroll's online lecture notes for a gentler introduction. There is a focus on the importance of understanding tensor notation, particularly the distinction between upper and lower indices, and how they relate to matrix representations. The conversation also touches on the nature of Lorentz transformations and their classification as tensors, highlighting the nuances in terminology and definitions. Overall, clarity in tensor notation and foundational understanding is emphasized as crucial for mastering the subject.