The fixity requirement

Ask a generative model the same question twice and you may get two answers, both fluent, neither anchored. This is not a defect to be patched out; it is what generation is. The model re-derives its output on every asking, from weights that compress more human cultural production than any artifact ever constructed, and a re-derivation can wander. Everything troublesome about these systems as sources of knowledge, the hallucination, the drift, the confident variance, follows from that single property.

Which points at the property that fixes it. A fixed artifact does not hallucinate, because it is no longer generating. The sentence sounds like a tautology and works like a design principle. The moment an output stops being regenerated and becomes an object, a saved document, a signed record, a versioned page, an entire class of failure disappears, and an entire class of virtue becomes possible. A fixed thing can carry provenance, because there is a stable something for the attribution to attach to. It can be tested, because it will say the same thing tomorrow. It can be cited, corrected, superseded, and built upon, because other work can bear on it without the foundation shifting underneath.

The distinction is old. Speech generates; writing fixes. The scientific paper, the land registry, the signed contract, and the compiled binary all exist because civilizations keep rediscovering that generation is for thinking and fixity is for building. What is new is a generator fluent enough to be mistaken for a source, which makes the old distinction urgent. A model’s answer is a performance of knowledge. It becomes knowledge, in the load-bearing sense, only at the moment somebody fixes it, examines it, and signs it.

So the requirement is a division of labor rather than a verdict on generation. Generation belongs in the kiln, where knowledge is still being drawn out and shaped, and where variance is exploration rather than error. What leaves the kiln gets fired: fixed, attributed, versioned, and only then built upon. A corpus that skips the firing is not a body of knowledge. It is a very long conversation, and conversations cannot hold up a roof.