The Theoretical Minimum

What is the theoretical minimum of understanding a text necessary to log it as “read” on goodreads without lying?

I can tell you that my eyes touched every word in this book. I can't tell you how many of the typed elements penetrated the various parts of my eyeballs and how many of the equations were lost on their way through my nerves and into my brain. I was not a strong maths student, and never had a pre-Calculus class let alone Calculus. So, many of the equations in this book were essentially static to me.

I read all of the prose(?). But much of this prose broke down the equations—unfortunately not in a way that could make much sense to me. I thrived on the parts of the book that explored concepts more than the parts focusing on calculus.

As it turns out, the theoretical minimum to start doing physics is more than the practical maximum of my maths competency. The fault lies with me, not the book. I do think with a primer to Calculus, I could figure this out, but not in this form.