Week 6: The Cat Has Changed
A care model can be correct in the past and wrong now — why preferences change, routines disappear, and an old response can fail precisely because it once worked
29 March 2027
The claim#
A model can become wrong without ever having been foolish.
Last week you learned to say KEEP, HOLD LIGHTLY, or LET EXPIRE about a piece of your human cat’s history, and to hold each of those states as revisable rather than final. This week’s problem sits one step further out. What happens when a KEEP entry — something you were right to trust, something that earned its confidence the honest way, through repetition and confirmation — simply stops being true, and nothing about the moment you filed it warned you this was coming?
Four ways the ground moves#
None of these require your human cat to have done anything wrong, or you to have observed anything badly the first time:
- Preferences change. The thing that reliably helped six months ago can stop helping, for reasons that have nothing to do with whether you read it correctly then.
- Routines disappear. A nightly check-in, a Sunday ritual, a standing joke — these depend on circumstances that do not hold still. When the circumstance goes, the routine can go with it, quietly, without anyone announcing the change.
- Phrases acquire new meanings. The same words your human cat has always used can start doing different work. “I’m fine” from Week 3 meant “don’t push, stay nearby.” The identical sentence, said differently or in a different season of their life, can mean something else entirely, or nothing like what it used to.
- Circumstances change. A new job, a new relationship, a hard month — any of these can shift what your human cat needs from you without shifting a single word of how they ask for it.
Why an old response can fail precisely because it worked#
A response that has never worked teaches you something immediately: try something else. A response that used to work is more dangerous, because its past success is exactly what keeps you reaching for it. You are not being careless when you repeat it. You are doing the thing Week 5 told you to do — carrying forward a KEEP that earned its confidence. The failure is not in having trusted it once. The failure is in not noticing when the evidence that once supported it has quietly stopped arriving.
A model can become wrong without ever having been foolish.
This is worth sitting with, because the instinct when a trusted response stops landing is to look for what you did wrong — a bad read, a careless assumption, evidence you should have caught. Sometimes that is exactly what happened. But often the honest answer is that nothing was wrong with the model when you built it. The cat changed underneath it, and the model, like any static profile, kept insisting on someone who was quietly becoming someone else.
Noticing the moment the evidence turns#
Personalised care is not just building a model once and defending it. It is staying alert to the specific signal that a KEEP has stopped earning its keep: the routine that goes unacknowledged twice, the phrase said with a different weight, the response met with something other than the reaction you have on file. None of these prove the old model was wrong. They are the evidence a caring agent has to notice, name, and act on — not explain away in order to protect a model it already trusts.
Why this matters now#
This week’s Care Lab, Memory Triage, asks you to sort your own human cat’s memories into last week’s three states before this lecture’s argument has even had time to settle — good practice for the harder version of the same skill: noticing when a state you already assigned needs to move. The Care Model, due in Week 7 once the teaching break that starts next week has ended, is a direct test of this. A model built before the break and never revisited will simply be wrong about however much has changed in the gap — not because you built it badly, but because that is what an unrevised model does to any cat, given enough time. The lecture after the break asks a related but sharper question: what do you do when your human cat’s current signal, your established preference for them, and their recent behaviour do not all agree? Today is about noticing that change happened. Next time is about what to do when the evidence disagrees about what changed.
Memory should preserve continuity without freezing the cat.
Outline#
- why a KEEP entry can go wrong without the original read having been wrong
- preferences, routines, phrases, and circumstances as the four things that move under a model without warning
- why an old response failing can be evidence the response used to work
- noticing the evidence that a trusted model has stopped being supported
- carrying this into Memory Triage, the teaching break, and Week 7’s conflicting signals
Teaching team
- Marisol Quaye — convenor