Adoption
The Planning Fallacy
A reasoning error where planning leads to flawed conclusions.
Planning Fallacy is a reasoning error where past investment, present context, or emotional state leads to poor decisions. Users experiencing Planning Fallacy continue with suboptimal solutions because of cognitive traps rather than rational evaluation. In product design, Planning Fallacy explains why users stick with bad products, resist better alternatives, and make choices against their own interests. Products that help users overcome Planning Fallacy provide clear value comparisons and reduce the weight of past investment.