The visualization maps the 800 largest cities worldwide by computing pairwise geodesic distances and reducing them to two dimensions with t-SNE, producing a derived "world" where proximity reflects spatial similarity rather than actual geography. Each city appears as a colored dot, with size scaled by population and color assigned by country using `d3.scaleOrdinal`. The t-SNE algorithm runs iteratively within a `d3.forceSimulation`, stepping the model and interpolating positions toward the latest solution. Custom canvas rendering draws the animated nodes, while data loads from a local CSV via `d3.csv`.