Beginner question: if I'm using a single global r/atom to manage state, should I "drill down" the atom through all my components (pass the state as an argument) or can I just require the atom when I need it?

The only obvious downside is that the components wouldn't be pure anymore, but is there any problems/gotchas with regard to redrawing or hot-reloading?

Ah, found this thread that answered most of my questions: https://stackoverflow.com/questions/38305198/clojurescript-reagent-pass-atoms-down-as-inputs-or-use-as-global-variables