I find this image interesting. Highlighted is the last page and a half of a 10,000-word doc I just finished after seven weeks of writing.
It’s intentionally unclear. I was looking just at the colors. The yellow is an interview, green is the main narrative, purple is backstory, and blue is the subordinate narrative. I spent today and yesterday writing and rewriting this section, moving text around. The highlights were to help me keep track of what I was doing, and it just happens to paint a very clear representation of the structure of this section.