Google's famed secrecy doesn't really do a very good job of keeping information from competitors. Those who are truly curious can pick up enough leaks and read enough articles to figure out how mostly everything works. But what it does do is create an aura of impossibility around the place. People read the airbrushed versions of Google technologies in talks and academic papers and think that Google has some amazingly large computer lab with amazingly powerful technology. But hang around a Googler long enough and you'll hear them complain about the unreliability of GFS and how they don't really have enough computers to keep up with the load."It's always frightening when you see how the sausage actually gets made," explains a product manager. And that's exactly what the secrecy is supposed to prevent. The rest of the world sees Google as this impenetrable edifice with all the mysteries of the world inside ("I hear once you've worked there for 256 days they teach you the secret levitation," explains xkcd) while the select few inside the walls know the truth -- there is no there there -- and are bound together by this burden.
