This interactive visualization simulates the distribution of tax changes across income levels, using animated dots on a canvas to represent individual households. A scatterplot shows income on the x-axis and tax change on the y-axis, with color-coded buckets indicating the magnitude of change. Below, users can click on filter panels for education, race, household size, and standard deduction to highlight or dim subsets of the data, with stacked bar segments updating to show proportional counts per category. The code uses d3.scaleThreshold for color mapping, d3.nest for aggregation, and canvas rendering for the scatterplot with SVG for the filter interfaces.