>>13339144>>13334592Hi, you are lucky the thread is still up. I am not the biggest fan of this paragraph, but it is trying to argue why something cannot be true, by contradiction.
Theta is just some parameter, it is a fixed (yes it is) value.
You are assuming that integral over x is zero, to argue for the contradiction. Since the integrand is a square, this is only possible if what is inside the square is always 0.
