A paradigm is a sign system that is closed.
A narrative is a sign system that is open.
This also easily explains the difference between game design and interactive storytelling (to an extent; you can think of it as a spectrum, chess is on the "game" extreme whereas something like SimCity or Final Fantasy is a lot closer to the middle. Nothing yet on the "interactive storytelling" extreme.)
I'll elaborate more on this soon and also talk about how this is shaping my work.
For that matter I decided I'm going to also be a lot more open about my work. Scrooges go nowhere.