the.com/benchmark

A number that turns 'it's good' into 'it's 73.2% good,' which feels like progress.

means A standard or reference point used to measure, compare, or evaluate the performance of something.

from From surveying: a 'bench mark' was a chiseled notch cut into stone or a wall where a surveyor's bracket (or 'bench') could be fitted to hold an instrument steady, marking a point of known height used to measure elevation of everything around it. By the 1800s the term had already climbed off the stone and into general use as a word for any fixed point of reference against which other things are measured.

origin
Surveyors cut marks in stone as fixed reference points
dark side
optimize the benchmark, not the thing it measures
goodhart's law
any benchmark that becomes a target stops measuring anything
tech usage
the score chipmakers love, real users never notice
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