Due to cognitive biases, a frictionless user experience might have less impact on brand perceptions than we want to admit. The teachings of Nobel prize winner and founder of behavioral economics, Daniel Kahneman, tell us that designing for brand memories is very different than designing for user experience. This talk is about how to be delightfully indelible even with the ever-present risk of being frictionlessly forgettable. See how Microsoft tested these assumptions with telemetry and data science, showing that there is a 14X greater ROI for creating peak moments than eliminating pit moments from brand memories.