This is excellent and I have no idea why the 5 or so previous submissions failed to gain any traction. The topic is fascinating, and the style of presentation (video coordinated with interactive 2D and 3D animated models) is absolutely of interest to hackers.
It's unusable on my Android tablet. I'll try it on a real browser tomorrow.
Yes. It's heavy on computation and put a fair amount of stress on my older Mac, but worth absolutely every compute cycle!