Since the person who posted on the forum was from the Physics department, he thoughtfully posted a section of a thesis.
[…the gauge invariance (Laplace transformation method or equations of motion)…]
[Help! I'm allergic to Physics. Someone bring me my ventilator this instant!]
[We only want to know why Mu Sheng is sitting in for a physics lecture and not interested in this shit. God! Physics is the bane of my life. Just looking at this makes me cringe.]
[Isn't the campus heartthrob in the Physics department? Could Mu Sheng be there to see him? There's no way she can possibly understand what's going on in that class.]
The students entered the classroom when the bell rang and were dumbstruck.
Since this lecture was about advanced Physics, most people would not choose to sit in for the class. What was going on today? Why was the class so packed that even the corridor was filled with students and there was not a single seat left?