Under the informal "Wikipedia rule", public comparisons of equipment still in service stay within information already disclosed. Published books also qualify under this approach. The restriction protects people who supplied technical details privately or assumed that a researcher already had authorized access. It can leave a public comparison less detailed than the researcher's private understanding.
Notable Point · 1:25:39-1:27:17
Public-source boundaries limit modern warship comparisons
Comparisons of equipment still in service use already published specifications to avoid disclosing restricted information or exposing private sources.