Not a bad intuition to have. But with some reading you can learn that "db" refers to the in-app, in memory (or local storage) database, which is designed to hol

Not a bad intuition to have. But with some reading you can learn that "db" refers to the in-app, in memory (or local storage) database, which is designed to hold all your application state, which allows it to be clearly transacted against and referenced from anywhere in your app. You start writing pure functions which take the current "app-db" as an argument, and return what the "app-db" should be. If React is `v=f(s)` (view is a function of state), re-frame is `s=f(s,e)` (state is a function of the previous state, and events)