I think it's also notable that HN is written in Arc, a Lisp dialect of pg's own devising. [1] All those "?fnid"s in the URL are pointers to functions.. Some sam

I think it's also notable that HN is written in Arc, a Lisp dialect of pg's own devising. [1] All those "?fnid"s in the URL are pointers to functions.. Some sample code (HN might have morphed quite a bit from it - no idea) linked to in one of the comments referred to by hfsktr is on github. [2] [1]: http://en.wikipedia.org/wiki/Arc_%28programming_language%29 http://en.wikipedia.org/wiki/Arc_%28programming_language%29 [2]: https://github.com/nex3/arc/blob/master/lib/news.arc https://github.com/nex3/arc/blob/master/lib/news.arc