Off the record · instruments

The calibration

Five instruments · five rounds each · bests stay on this device

Precision is not a gift. It is a practice, and practice slips quietly. These five instruments put a figure on how far yours has slipped.

The estimate

A stretch of time shown once, then held from memory.

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A reference shown once, then entered from memory, exactly.

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Two entries trade places behind a passing shade. Point out the pair.

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A colour witnessed, then mixed again by eye.

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A tone sounded once, then found again by ear.

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