Your prototype only needs to walk one line - A 30 minute interactive Q&A on building one end-to-end path through your prototype before anything else. Examples not tutorials. Places are limited to twenty.
Prototypes with three paths never finish a single one - A 30 minute interactive Q&A on the cost of more than one path through your prototype. Examples not tutorials. Places are limited to twenty.
2.1.3 - What This Build Is Meant to Teach You, Not Just to Ship - Name the learning goal: say what you believe, what the build needs to answer and what signal will prove or weaken that belief.
2.1.2 - Where the User First Feels Value Is Where to Start Building - Find the first value moment: point to the moment the user first feels relief or progress and the step immediately before it.
2.1.1 - The Only Path Your Prototype Actually Needs to Walk - Define the prototype path: say what the prototype is meant to teach, which path will test it and what signal counts as proof.