This document discusses the concept of a "paper tiger" and how to use paper tigers to develop products. A paper tiger refers to something that seems threatening but is actually harmless. The document recommends using an evidence-based approach to product development by testing prototypes first before full development. It suggests creating paper versions of marketing materials like brochures and ads for a product to get early customer feedback, which can then be used to inform further development before major resources are invested. The goal is to turn visions into reality first on paper to gather input and validate assumptions with customers before fully developing products.