The course's objectives plus the sign-posting of a few key topics - breadth not depth -
(Depth will be fully covered later - from Lesson s65 onwards).
Right now we start the introduction to the foundational concepts. They take us upto lesson s64.
The breadth gives you introductory context to make later absorption in context easier. When we do in-depth topics there is a degree of focus; some isolation from other topics. This initial introductory grounding enables you to pick-up confidence (& speed) as we progress.