A small circle follows the cursor as it moves over a blank SVG canvas, providing a direct, real-time mapping of pointer position to graphical output. The application uses React's `useState` hook to store the mouse coordinates, which are updated via the SVG `onMouseMove` event handler and passed as `cx` and `cy` attributes of the rendered `<circle>` element. The visualization demonstrates a minimal, single-element interactive scene built with React and rendered as SVG.