The librarian’s excellent answer
Ask a search tool what you said last Tuesday, and it may return your sentence word for word. That is an achievement. If the sentence concerned a promise, the exact wording matters; a loose paraphrase could change what was promised.
What if the old text was a correction?
Suppose the earlier exchange was: “Please stop calling every unfinished drawing a failure.” On Friday the system retrieves that sentence exactly—and then tells the same person that her new sketch failed because it is unfinished. The archive did its job. The encounter did not.
Perhaps Friday’s reply had a good reason we cannot yet see. We should inspect it, not declare a verdict from one line. But retrieval alone cannot settle the question. We need to know whether the correction reached the relevant moment and changed the judgment it was meant to change.
Pause here: If you could choose only one test, would you ask for an exact quotation or watch what happens when the same situation returns?
Keep both the first account and the revision
A later interpretation may deepen or overturn an earlier one. PHS’s Engram drafts propose linking the new interpretation to the original event, not silently rewriting what someone said at the time. That lets a later reader see the correction, the earlier mistake, and whether conduct changed afterward.
My answer: Finding the right text is evidence of retrieval. Remembering, in the stronger sense PHS seeks, also calls for source, context, and a later response answerable to what was found.