This chart shows the growth of world population over time as a smooth, filled area chart. The data comes from a CSV file of population figures by year, loaded via `d3.csv`. The visualization uses D3 v6 with `d3.scaleTime` for the x-axis and `d3.scaleLinear` for the y-axis, rendering an SVG path generated by `d3.area()` with a `curveBasis` interpolation. Axes are labeled and formatted using `d3.axisLeft` and `d3.axisBottom`, with population values abbreviated using `d3.format`.