A React-based bar chart displays the top 10 most populous countries from the United Nations World Population Prospects 2019 dataset, with no axes or labels. The chart uses `d3.scaleBand` for vertical country positioning and `d3.scaleLinear` for horizontal bar widths based on 2020 population values. Data is loaded asynchronously via `d3.csv`. The SVG renders each country as a simple `<rect>` element, creating a deliberately minimal, pathetic visualization.