> I think the arc codebase is worth studying and understanding

Are you talking about the source code for ARC, or for Hacker News?

It would be interesting to see how ARC is being employed on such a high profile site. I expect that some algorithms won't be freely available so as not enable people to game the site, but the rest would be interesting to see.

I could find any source for Hacker News though.

> And since code is data, a lisp master can write systems with a shocking number of features in shockingly few lines of code

You don't even have to be a master. So much bikeshedding has been spent over the decades. We are still going back and forth on data interchange formats...