Note: This is a small peek into the kind of background model-building that goes into Be Well Tuned. I don't currently have resources to invest into writing, so the description is pretty bare-bones. On the positive side, I have changed the blog theme to black text on light background - I hope that makes it more readable.
The Eisenhower matrix is a (somewhat) useful high-level framing of a certain aspect of productivity, based on classifying tasks/activities into four types. It's casual application was entertainingly explored in this Wait But Why post. I'll minimally quote just the matrix itself: