Power users rarely plateau. The reason is not that they work harder at the same tasks. It is that their way of working keeps expanding what they can do next. They hand a piece of the work to a system they have built, and that frees attention to reach for something that was out of range before. The edge of what is possible keeps moving, and they keep following it. The gap between casual AI users and power users is specific, behavioral, and well-documented. Field experiments, platform data, and workplace surveys converge on the same finding: AI skill gains are unevenly distributed, and the habits that produce them are learnable through practical projects you build as you read.