At its best, documentation (or a subset thereof) can and does serve as a cross-reference -- like a cross-reference in an important calculation. If the two resu

At its best, documentation (or a subset thereof) can and does serve as a cross-reference -- like a cross-reference in an important calculation. If the two results don't correspond, you know you have a problem. (Even if you have to explore both paths to learn what the problem really is and where it lies.) Something to consider, the next time you find yourself inclined to complain about documentation. Is it the documentation, or the fact that it's not useful documentation?