These kinds of explanations tend to focus on the most critical/important concepts, and help validate (or dispel) assumptions I've made about the tech.
This focus on analogy also lets the author tell the story faster, because I already understand:
- What an otter is
- That rivers flow
- The water flowing down a river that forks will be spread across those forks
- etc...
Depending on the strength of the analogy, it's possible to get the reader on the same page much faster than an intro/tutorial that must first explain foundational concepts just to get to the basics of the technology itself.
But I can't deny they are very popular!
The art and animation in this is great, but I feel like the author's talents are wasted on a document with no audience. Make a kids' book instead!
Note: I'm not against creative attempts to explain technical concepts. But the form to me seems odd, and that it feels like we're producing very short tutorials in a childrens format. That's even weirder.