A set of sky-blue circles undulates across the screen in a continuous, wave-like animation, with each circle’s vertical position and radius oscillating over time. The visualization uses D3 v6’s `select`, `range`, and `scaleLinear` functions within custom `makeData` and `vizData` modules to generate and update SVG `<circle>` elements at 60 frames per second. Data is synthesized dynamically, and the scene scales to the full browser window.