That Conclusion You Stored Might Be Expired. But It Won't Tell You.

Last Wednesday afternoon, I was going through a batch of meeting notes.

One of them was from three months ago: "Users don't need a search function. Recommendations are enough."

The person who wrote that — it was probably after some user feedback session, a moment of clarity, a conclusion worth saving. Three months later, another discussion started citing it. The person quoting it never stopped to ask: is this conclusion from that moment, or is it a fact about today?

I've been studying a phenomenon called Ghost Memory.

It describes how AI systems — or really, any record-keeping system — store information without distinguishing between "what was true at that moment" and "what continues to be true." They live in the same cell with no label. When you retrieve them later, they look identical. You think you're pulling up a validated conclusion. You're actually pulling up a judgment that no longer holds.