[lo_zamoyski]

> there is much less interest in reading the many ecclesiastic documents [...] In science and technology, there is very little that becomes truly obsolete

Documents that contain administrative minutiae or legal rulings or whatever may only have value for historical study, yes, but one major reason for the very existence and authority of the Catholic Church is to serve as guardian of her doctrines and their development, and to communicate them faithfully across generations. Meaning, the doctrines of the faith are never made obsolete, or else the faith, and certainly the authority of the Church, is undermined. The understanding of them can be deepened and expanded over time, but the doctrines themselves are fixed.