Deletion of Descriptive knowledge

Comment: This is a fairly standard concept and that's why the page history goes back to 2001, when the demands for citations were not so strident.  It is easy to find coverage of the topic; for example see ''https://books.google.co.uk/books?id=dYD0BwAAQBAJ&pg=PA180 Knowledge and Its Attributes''. It's just a routine case of improvement being required and, per our |editing policy, this is done by ordinary editing, not deletion
Stance: keep
Cited policy: Wikipedia:Editing policy (WP:IMPERFECT)