A GUI hides complex code behind menus and drag handles you operate by hand. AI hides the same complexity behind a conversation. Recreating a hand-built InDesign leaflet as a YAML-to-LaTeX pipeline: abandoned in 2025 as beyond the time I could afford: is what made the difference concrete.
Claude’s LaTeX output frequently didn’t compile. The fix wasn’t to prompt better — it was to close the feedback loop. What looked like a reliability problem turned out to be a latency problem.
The same PDF, two different prompts. 'Is this well laid out?' returned vague positivity. 'You’re an experienced typographer, check this before printing’ returned a structured technical review. The before/after register change is a clean, demonstrable lesson.
