I did some research last year on JY and found out some really interesting stuff that has previously been unknown about it's prototypes (including some mechanics that was removed last minute!) and the development process.
The initial idea was to get to the bottom with everything and present it as a hyper-interactive webpage but I lost spirit a bit and it halted. Now when I checked out my files again I felt it would be a better idea to just share the facts and see what other people might come up with. So I wrote an article about it and published on Medium. I hope you will find it interesting, and let me know if you got any ideas how to dig further.
The article is here: