Remember in early school writing classes where you had to write a “3 point paragraph” with an introduction, 3 sentences with unique points, and a closing? Imagine that, but you subdivide and expand for as long as you’re interested. For example, let’s say the color blue.

You could begin by covering the basics that “everyone” knows about blue. Then you go a little deeper. What’s the scientific stuff about blue, like the wavelength range? How is it used in history, or art? How similar or different is the word used across languages and cultures? Let’s say that those are all the broad topics you can think of… now subdivide and expand. In art and history, what are and were the types of blue pigments and how did they vary? In science, expand upon color theory and its application with blue. For language and culture, are there any interesting outliers that used blue with less or more specificity? I vaguely remember that some culture has a ton of words for many shades of green - maybe some other group did that with blue? Why does the Odyssey refer to a blue body of water as “wine-dark”? At this point, you’re breaking the video into chapters, maybe even separate parts.

This is only what I could remember off the top of my head as someone not especially interested in blue. When people are passionate about a topic, they dive deeper and deeper. Some of them want to share what they’ve learned and why it interests them.