Final answer:
The term for progressive depth stories is martini glass structure.
Step-by-step explanation:
Another term for progressive depth stories is martini glass structure. This term refers to a narrative structure where the story starts with a narrow focus and gradually expands to explore different perspectives and details. It can be compared to a martini glass, where the top represents the beginning and the bottom represents the end, with the story opening up and becoming more intricate as it progresses.
Learn more about Progressive depth stories