This gallery example displays summary statistics for a dataset of HIV patients in Bangkok. It reports the dataset’s file size in kilobytes, its row count, and its column count using oversized text. The visualization loads a CSV file from a GitHub gist via `d3.csv`, then computes the size with `d3.csvFormat` and counts rows and columns from the parsed array. The code also includes commented alternatives using `fetch` with async/await and a nested Promise “pyramid of doom,” illustrating different ways to retrieve and parse the same remote data with D3 v5.