This document provides a critical perspective on the history, theory, and impact of business planning in contemporary businesses and business schools. It discusses why planning is advocated for but theories to guide the planning process are lacking. While planning assumes the future is predictable, empirical evidence shows most new organizations do not produce formal written plans and planning outcomes do not necessarily lead to success. Factors like social capital and knowing customers beforehand are more strongly correlated with profitability than planning. The document suggests planning provides legitimacy and signals conformity to institutions that promote planning, but does not provide advantages in the actual process of starting a new organization. Alternatives to traditional planning education, like experiential learning models, are proposed.