This scatter plot shows the relationship between the rank and final worth of billionaires, with each point colored by category and displaying tooltips on hover. The chart, rendered as an SVG using D3 v6, loads CSV data from a GitHub gist. It maps rank to the x-axis and final worth to the y-axis using `d3.scaleLinear`, draws circles, and applies `d3.axisBottom` and `d3.axisLeft` for axes. Interactivity is implemented through mouseover and mouseout events that toggle a tooltip showing the person’s name, worth, category, and age.