* Something about the transition seems off between the pie-chart and the next stacked-over-time chart. I would expect all the dots from a given category+color to always remain in the same category+color, so that the animation is just a re-flowing of the same groups. Instead, many dots switch allegiance as they travel.
* The first "Wealth over time" heading mentions a year-range, but the graph itself has no horizontal markings.
* The next graph, "Wealth increased for the 55+", has some amount/time text but it's not quite precisely clear where those cuts are relative to the text.
* For the over-time graphs, it seems it's a compromise between two goals of showing (A) the growth for any single category across the span of time versus (B) the relative size of each group at an instant in time. It does a little of each at the expense of the other.
* The first "Wealth over time" heading mentions a year-range, but the graph itself has no horizontal markings.
* The next graph, "Wealth increased for the 55+", has some amount/time text but it's not quite precisely clear where those cuts are relative to the text.
* For the over-time graphs, it seems it's a compromise between two goals of showing (A) the growth for any single category across the span of time versus (B) the relative size of each group at an instant in time. It does a little of each at the expense of the other.