A scatterplot of 50 random points updates with new data each time the user clicks the text prompt, smoothly transitioning the circles to new positions over one second. The example uses D3 v4 to generate random datasets, map values through linear scales, and render SVG circles with axes. Clicking triggers a data reset, scale domain recalculation, and a `transition()` with `duration(1000)` to animate the `cx` and `cy` attributes.