This visualization compares wine consumption and national happiness by combining a scatter plot with a dynamic line chart. The left panel displays points representing quantities of wine consumed per country against healthy life expectancy, with the ability to select a data point, which updates a temporal line graph on the right showing temperature and "rtb" values for that specific day. The interactive tooltip, built with D3 v6, enables this cross-filtering. The visualization uses SVG rendering and transitions to highlight selected data points, with data parsed from external CSV files.