I have no idea what is this site. But the bottom-up approach description is reminiscent of the book The Pattern on the Stone, by Danny Hillis: https://en.m.wiki

I have no idea what is this site. But the bottom-up approach description is reminiscent of the book The Pattern on the Stone, by Danny Hillis: https://en.m.wikipedia.org/wiki/The_Pattern_on_the_Stone https://en.m.wikipedia.org/wiki/The_Pattern_on_the_Stone