(1) Check out the underlying D3 example of zoomable circles - https://observablehq.com/@d3/zoomable-circle-packing?intent=fork https://observablehq.com/@d3/zoom

(1) Check out the underlying D3 example of zoomable circles - https://observablehq.com/@d3/zoomable-circle-packing?intent=fork https://observablehq.com/@d3/zoomable-circle-packing?intent=... (2) Explore D3.js interactive visualization demos - https://observablehq.com/@d3/gallery https://observablehq.com/@d3/gallery I show potential clients this demo page frequently, and it never ceases to blow minds and start interesting conversations! Enjoy.