42 - Abstractness is “the universality of a concept or rule” (Wozniak 2020). Abstractness often tracks along side applicability because abstract knowledge has gone through generalization, which allows it to apply to a wider set of situations.
You have to be careful though because if knowledge becomes too abstract than it loses its meaning and ceases to be applicable. If I’ve removed so many details that you can’t make sense of some information then it is of no use.