I found a book with the inclusive-sounding title Objective Measurement.10 The title might lead you to believe such a book would be a comprehensive treatment of the issues of measurement that might be interesting to any astronomer, chemical engineer, or economist. However, this five-volume work is only about human performance and education testing. It’s as if you saw an old map titled “Map of the World” that was really a map of a single, remote Pacific island, made by people unaware that they were on just one part of a larger planet.