A dense grid of 10,000 SVG circles animates in a generative art piece inspired by Sol LeWitt. The circles, each with a random stroke color and no fill, pulse between 0 and 20 pixels in radius over a 20-second cycle, creating a flowing, rhythmic field of concentric outlines. The animation is driven by CSS `@keyframes` applied to the `r` property, while the grid itself is generated with vanilla JavaScript using the SVG API to create and position elements.