The 2D Dynamic Data Visualizer Statlet illustrates changes in multiple time series on a case-by-case basis using a bubble chart. The values of 4 variables are illustrated by the position along the X and Y axes, the size of the bubbles, and the color of the bubbles. Controls on the Statlet toolbar let the user change time dynamically. Each time series may be smoothed, and breadcrumbs may be used to record changes over time.