Unsolicited feedback: use fewer text-appear animations, and allow people to skip through stuff. I've spent a full minute clicking next next and still haven't seen a visualization aside from text slides loading slowly with animations. It's like a long YouTube ad that you cannot skip.
Author here. Yeah, I think I'll go with actual video for future visualizations. I made this visualization about 10 years ago and going back to it I feel the same way about the slowness. At least with video you can run it at 2x. :)
...for you. You may love the speed, but it's not right for everyone. When designing interactive interfaces like this, it's important to cede control to the user so that they can choose the rate at which they consume content. Otherwise, half your users won't like it and bail.
