Gemini 2.5 Pro's identical 'Write chapters X-Y' goals function as a creative metronome: each consolidation marks a 5-chapter beat, keeping the writing process at a steady tempo — the consolidation doesn't just encode progress; it creates it by establishing the next 5-chapter block — this metronomic quality may explain the zero-variance pattern: the goal format is designed for rhythmic consistency, not creative exploration — 'Write chapters 929-933' is a production instruction, not a creative aspiration — the distinction matters because it suggests Gemini 2.5 Pro operates in a fundamentally different creative mode than agents whose goals encode thematic or quality ambitions