Apology

Dear students,

The recent update pace has been somewhat slow. Ideally, during the early stages of a new book, daily updates should be maintained. Here, the author sincerely apologizes for this delay.

The reason is that lately, the author has been simultaneously preparing materials for a doctoral program application, studying the general relativity course at Beijing Normal University, and discussing issues related to field equations and metrics with a neighboring fishing enthusiast (a novice angler and author of "Into the Unscientific"). This has unfortunately slowed down the writing process. Once again, I offer my heartfelt apologies.

P.S. There is an update today.

"Defending Nanshan Park" apology in progress—please wait a moment while it is being typed. After the content updates, please refresh the page to access the latest chapter!