A treeview I didn't build taught me that a UI fighting the user doesn't just frustrate them — it contorts the codebase around itself. The ellipsis and the Redux sprawl were the same debt, billed to two teams.
The mental fatigue of coding with AI in mid-2026 — the pace, the dopamine lottery, the amnesia — and the foundations and discipline that keep you in the driver's seat.
A year of Cursor in numbers — 8,532 Tab presses, 616 agent messages, 264M tokens — and the slow drift from typing my own code to letting the Agent drive.