A grid of 50 black rounded squares fills the browser window, each one a styled `<div>` created dynamically by a `for` loop that calls `document.createElement` and appends it to the body. The squares appear as a uniform, static pattern, yet the title suggests the presence of invisible dots. No external libraries or data sources are used; the visualization relies solely on raw HTML, CSS (flexbox layout with fixed `84px` dimensions and `margin` spacing), and vanilla JavaScript to construct the display.