This reusable D3 v6 scatter plot visualizes insurance data, mapping BMI and charges via the extensible `scatterPlot()` chart factory. The SVG rendering initially plots petal width against sepal length, then cycles through four data columns every two seconds, animating the axis scales and circles with `setInterval`. The chart employs `scaleLinear`, `extent`, `axisLeft`, and `axisBottom` for scales and axes, while the getter-setter pattern supports dynamic updates. Data loads as CSV from a remote gist, with custom labels added for the x- and y-axes.