You worked on it three days ago. The keywords were specific, unusual, and yours. You type them in. The first result is from two months ago. The second has nothing to do with anything. The third one is what you wanted.
Anyone who used the web before Google knows that feeling. AltaVista held the whole index and ranked it badly: term frequency over intent, no notion of authority, no sense of when. You learned to scroll, to guess synonyms, to accept that the machine had your answer and could not put it on top.
Recency Is a Signal, Not a Tiebreaker
The failure repeats across Claude, ChatGPT, Gemini and Grok, because retrieval runs on semantic similarity alone. But a person searching their own history is not asking what is most alike. They are asking what did I just do. Recency, revisits, thread length, whether the session actually produced something: all ranking signals, all mostly unused. It is the absence of PageRank over again. The corpus is excellent; the ordering is naive.
Citizen Kane opens in a warehouse of a dead man’s possessions, catalogued and worthless. The one object that explained him sits there, indistinguishable from the crates around it. That is an index without ranking.
The Irony Is Exquisite
The people who solved this are alive and employed. Twenty-five years of work on freshness decay, click models, query intent and personalization sits at Google, at Microsoft, and in every ranking team they trained. The AI labs rebuilt retrieval from first principles and faithfully reproduced 1998.
The fix is not a bigger model. It is an information retrieval hire.
Search companies helping AI companies with search – that is the hoot. Welles had never directed a feature when he made Kane. He also had Gregg Toland, who had shot fifty of them and knew exactly where to put the camera. Vision needed craft standing next to it.
What Good Looks Like
Time-aware ranking on by default. Filters that survive contact with a real question. A working answer to “the last thing I did on X.” And one line telling you why a result matched, so you can correct the query instead of guessing at it. None of this is research. It is product work that was finished a generation ago and simply never carried across.
Kane ends with reporters combing an archive for a single word, failing, while the answer burns in front of them. Our archives are smaller, better indexed, and still ask us to guess. Rosebud was in the room the whole time.