> It takes several readings to tease out a clear understanding of each of the points in the formulae. The terseness of the expressions is daunting. I was quite

> It takes several readings to tease out a clear understanding of each of the points in the formulae. The terseness of the expressions is daunting. I was quite pleased with the writing/my understanding of the first section. As you say, it is dense but quite readable IMO. Math tensors (as opposed to computer/ML tensors) are new to me so that will take more time. > Several more readings are needed to internalize it to the point of teaching it to someone else, which is when the real grasp arrives. That's part of my study process, can I explain the topic to my imaginary students. Works well for me. > Or maybe I'm just slow. Nothing wrong with savoring things at a leisurely pace.