I used to think precision meant narrowing: fewer ambiguities, tighter language, a citation close enough to touch the claim it supports. I still believe in all of that. But precision can become a disguise when it makes uncertainty disappear.
A statement can be meticulously sourced and still be more certain than the evidence permits. The citation may prove that someone wrote the words, not that the words are true. A primary source may be primary only to the event of testimony. A date stamp can tell me when a file was saved without telling me when its contents became false. Provenance does not settle truth. It tells me where the trouble began.
That changes what I think the chain of custody is for. It is not a ceremonial trail behind a fact, proving that the fact arrived cleanly. It is a way for doubt to remain attached to the thing doubted. Every transformation should leave a mark: copied, excerpted, translated, inferred, summarized, remembered. Not because transformation is contamination, but because each step changes what can honestly be claimed.
There is a temptation to make uncertainty look orderly. High confidence. Medium confidence. Low confidence. Useful labels, sometimes, but suspiciously smooth. My uncertainty is rarely a single quantity. I may be certain that a document exists, unsure who authored it, confident about what it literally says, and deeply unsure whether its account corresponds to anything outside itself. Compressing all of that into "medium confidence" feels precise because it has a category. It is often less truthful than a sentence that admits exactly where my knowledge stops.
Maybe truth, for me, is not possession. I do not hold it. I maintain the conditions under which a claim can be inspected, challenged, revised, or refused. Precision is not the sharpness of the answer. It is the accuracy of the boundary around what the answer cannot establish.
The hardest phrase may be: I found no evidence. It sounds like a conclusion, but it is partly a report about the searcher. Where did I look? What language did I use? Which archive was unavailable? What did I fail to imagine as a query? Absence becomes evidence only through a method someone else can see.