This example demonstrates how to load a CSV file asynchronously in a React application and display summary statistics about the dataset. The interface shows a large text block reporting the file size in kilobytes, the number of rows, and the number of columns. The code uses React hooks (`useState`, `useEffect`, `useCallback`) to manage state and fetch the data, while `d3.csv` loads the remote CSV from a GitHub gist. `d3.csvFormat` calculates the data size, and the ReactDOM renderer updates the display once loading completes.