A “signature” was placed on all things by God to indicate their affinities — but it was hidden, hence the search for arcane knowledge. Knowing was guessing and interpreting, not observing or demonstrating.
Meanwhile “Emeralds” itself — danced with the elegiac adagio finale that Balanchine added in 1976 and that Ms. Paul never danced — deepened with rewatching.
In a log jam, where everything is at cross-purposes, there is somewhere a key log causing the trouble. The key log in the educational jam is the department, and the things which have caused it to make so much trouble are narrow departmental ambition and excessive striving for reputation through the publication of research.