What you should walk away from this lesson with

• The understanding that what your product refuses to do is at least as important as what it does.
• Three written exclusions, each a real feature you're committing to never build.
• The realization that week-one brain has to write a clear letter to week-six brain, because week-six brain is exhausted and cannot be trusted to remember.

When you have that, open LESSON_4.md. Lesson 4 is where you put a price on it. A real price. Today. From a real customer who's sitting in front of you.

— Coach Lin (Module 2, Wright)