AbstractWe are seldom taught that simplification has a high risk of failure. In truth, it only works up to a point, after which all that lies ahead is failure. To examine the limits of simplicity is to look at what happens when our efforts to make things fit into a sound bite, label, or keyword go awry. When simplification works, it can indeed be very effective. But simplification does not always work—so more is not necessarily better. And when simplification fails, it fails miserably. This article exposes the limitations of simplification as a design choice, explores the cognitive origins of why we often get led astray in making such a design choice, and explores how we might develop a set of practical heuristics to counter the seductivene...