The Revise word processor and Microsoft's Copilot rollback did not happen in isolation — they arrived the same week, and together they define the poles of the AI coding argument more cleanly than any benchmark or analyst report. One story is about what happens when a developer stays in control. The other is about what happens when a platform assumes control transfers cleanly to the tool. The Revise developer built his rendering engine from scratch over ten months, keeping architectural decisions in human hands while using agentic tools for speed…