Arithmetic and evidence
A computer can divide two representative values with extreme precision. That does not improve the survey, artefact, or historical identification from which those values came. Output precision and historical confidence are separate properties.
Uncertainty has sources
Variation may come from regional standards, chronological change, workshop practice, worn measuring rods, damaged masonry, ambiguous reference points, and modern measurement. A single plus-or-minus figure is a practical summary, not a complete error model.
A better citation habit
State the ancient quantity, selected standard, region, period, representative metric value, and source. Round the prose to a level the evidence supports. Keep the full computational output only when it helps reproduce the calculation.
Continue the investigation
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