[sodapopcan]

I worked at an org that did prototyping and it was fantastic. It was especially great for validating if a customer actually wanted the feature they were asking for (they often didn't). We _always_ threw away the work and started fresh if they did want it. What really helped keep us honest here was that we TDD and pair programmed. We also prioritized getting the prototype finished as quickly as possible. This meant writing really horrible code, calling variables and functions things like `foo`, and breaking other features if necessary.