Thanks! Yes, I've been making interactive diagrams for a long time. I wrote about my motivation in 2007 [1]. In the early 2000s it was Java applets, and then I switched to Flash applets, and then HTML5 in 2011. That was also around the time I ran out of disk space on my stanford site (they give me 100MB) so I bought a domain name, redblobgames.com. That was also around the time there was enough cross-browser support for me to switch to HTML5. And then in 2014 Bret Victor wrote about "explorable explanations" — that's when I felt like I wasn't alone in wanting this type of thing.
Would just like to thank you for having an interactive site that runs fast on my Pinephone despite its lackluster SOC. Checking the weather ended up giving Mozilla an automated crash report this morning....
[1] https://simblob.blogspot.com/2007/07/interactive-illustratio...