I guess the point that I was really trying to make was that reading the code and documentation can only get you so far, and doesn't help nearly as much with the

I guess the point that I was really trying to make was that reading the code and documentation can only get you so far, and doesn't help nearly as much with the bigger-picture "why" questions. (The code I worked on, in addition to being well documented, was also IMO pretty well organized and clear.)