Kennedy captures something subtler than mere willpower here: he's describing how discipline compounds over time into what *appears* magical to outsiders, but is really just accumulated small choices. The real power isn't in the discipline itself—it's in how consistency eliminates the need to negotiate with yourself constantly, freeing mental energy for actual work. A writer who sits down at the same hour every morning stops spending brain cycles debating whether today counts; after six months, readers see "genius," while the writer simply sees a kept appointment with herself.