The author addresses your concern > Additionally, the shorter it is, the less likely it will be invalidated by some future change. This is the main rule of thu

The author addresses your concern > Additionally, the shorter it is, the less likely it will be invalidated by some future change. This is the main rule of thumb for ARCHITECTURE — specify only things which are unlikely to frequently change. Don’t try to keep it synchronized with code. Instead, revisit it a couple of times a year.