Facebook says that it’s defined by its “hacker culture.” It’s a culture that makes for an environment wherein, according to the company, “creative problem solving and rapid decision making” is rewarded. To get new engineers up to speed, each new hire is put through what is called “Boot Camp,” a six-week orientation program where new engineers are given access to Facebook’s full code base and are expected ship code in week one. That’s wild behavior for a company so deeply entrenched in modern Internet culture. Even though all new features go through Mark Schroepfer, what that means is every engineer has the ability to enhance the site or break it. Or, accidentally send out features way too early, as was the case in December 2010 when an engineer made live a secret project called “Memories,” which later became “Timeline.”