The terminology chosen is terrible, "priority" in this context is self referential and doesn't mean anything. All those (equality, utility, ...) are strategies

The terminology chosen is terrible, "priority" in this context is self referential and doesn't mean anything. All those (equality, utility, ...) are strategies to define the priority in the face of scarcity or competing requirements, so to call one of them "priority" is nonsense. The author is basically saying that: - Equality strategy is to prioritize decreasing differences. (OK) - Utility strategy is prioritizing maximizing the sum total of a set utility function. (OK) - Priority strategy is prioritizing priority. (WTF!!!)