That would be one approach, @Mohammed. Another would be -as @Sai
proposed in another thread- to outline sections of the video with timecodes in the "shownotes" (i.e. what shows up when you click "more" dropdown in YouTube UI)- so that one can easily jump to the subtopic of interest.
From my perspective, it's about how the content is scoped: the former approach -typically implemented as a Series w/ multiple episodes, or more simply as a playlist- makes sense where scope of each tutorial episode results in a product that is useful unto itself, while the latter approach makes more sense when it's about the steps in building a single product. IMO, it's the latter case that Soren has managed to pull off here (in a single unedited virtuoso performance of >1hr!), so i'm for adding an outline of sections w/ timecodes.
In fact i've built that sort of outline for myself, to facilitate returning to the sections i plan on reviewing again (and again and again!), there is so much that calls for more chewing & digesting capacity than i can muster at this point. This is not an artifact that would make sense to anyone else as it stands, but i'd be interested to assist in developing "shownotes" along such lines, if @Soren be interested.
/walt