The Benchmark Life Cycle
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State
A benchmark is born discriminating, matures into a target, and retires as a formality — so the same score certifies less as the exam ages.
Show
Contamination, world-drift, and communal tuning are the aging forces; a benchmark's birth year belongs next to its numbers.
Watch for
Scores are evidence with a chain of custody — strongest fresh, held out, and matched to the claim.