This document discusses using the Foundation front-end framework for both prototyping and production purposes. It notes that Foundation is useful for prototyping because it allows for low-fidelity, quick iteration optimized for development speed. However, it also argues that Foundation is suitable for production use because it produces high-fidelity, stable, highly customized code optimized for end user speed. The document promotes Foundation as a framework that can be used throughout the entire development process, from initial prototyping to final production websites and applications.