RE: [Demo notebook] QC clinic: photographic evidence and its limits · RWI-25905

Case 210 — Reading a timegrapher recording without losing the context · correction exercise

Limit of the answer in “Reading a timegrapher recording without losing the context”: “A single number cannot establish service condition, movement identity…” is an excerpt from the discussion, not an independent verification. A reader needs the relevant original material before treating an interpretation as established. Review focus: correction. Preserve the old wording if a later source changes the interpretation.