This example demonstrates how to load external CSV data within a React component using D3’s `d3.csv` method, displaying a summary of the dataset’s size, row count, and column count. The component uses React’s `useState` and `useEffect` hooks to fetch the data from a GitHub gist and render a message via a custom `message` module. The visualization pauses on a “Loading...” status until the asynchronous data retrieval completes, then presents the statistics in a large monospace `<pre>` element rendered as SVG.