> There's probably a book that explains all this much better than I can here, but perhaps this conveys the general idea. Why should I read a book when you hav

> There's probably a book that explains all this much better than I can here, but perhaps this conveys the general idea. Why should I read a book when you have done a great job in one paragraph. Seriously, everyone who has built large systems should understand it immediately. This is a big part of the software engineering craft.