Is this article saying that all developer employees have access to the "holy" search algorithm internals? I can hardly believe that to be true, given the fact that SEO is a complete industry.
Looks like there is a Quora question that mentions this too: https://www.quora.com/How-many-Google-employees-can-read-acc...
FTA:
> There are limitations this system. Potvin says certain highly sensitive code—stuff akin to the Google’s PageRank search algorithm—resides in separate repositories only available to specific employees.
The vast majority of code is visible to everyone, though.
"Potvin says certain highly sensitive code—stuff akin to the Google’s PageRank search algorithm—resides in separate repositories only available to specific employees."