“Economic/sociological principle stating that when a measure becomes a target, it ceases to be a good measure.”

“A principle mentioned as a caveat to guard against when using metrics for AI ROI.”

“A principle stating that when a measure becomes a target, it ceases to be a good measure, illustrated by the decay of imperial exams and Ivy League admissions.”

“good Hearts law is like any good measure once that becomes a measure is fails to be a good measure”

“Economic principle used to explain why the four-year degree has become a hollow target.”