The Principle of Minimal Coherence

Definition and scope

The Principle of Minimal Coherence is a filing doctrine holding that a subject admitted to the Tower need only cohere sufficiently to be catalogued, and not one degree further. It stands as the deliberate counterweight to The Principle of Material Coherence, and for much of the archive's history the two have been cited against one another in roughly equal measure. Where Material Coherence asks whether a subject's internal relations hold under scrutiny, Minimal Coherence asks only whether the entry can be written down without collapsing mid-sentence.

The principle is conventionally traced to Clause 12 of the Fourth Concordance, though the clause itself does not use the phrase. It reads, in full: "That which is legible in the register is, for the purposes of the register, established." Later recensions expanded this considerably; the shortest surviving formulation remains the most quoted, and is inscribed above the intake desk on Floor 744 in letters 40 mm high.

Relation to competing principles

Minimal Coherence is frequently confused with the Principle of Contingent Filing, which concerns the evidentiary threshold for opening a file rather than its contents. The distinction was settled — provisionally — by the ruling attached to the Chen Discrepancy of 1908, which accepted a filing on the strength of a single material fragment and then declined to say what the fragment cohered with. Both principles were invoked; neither was withdrawn.

The Department of Stack Integrity has historically preferred Minimal Coherence in practice, on the grounds that demanding full coherence from every incoming subject stalls intake beyond the point of usefulness. The Librarian of Coherence has objected to this reading on at least four recorded occasions, most notably during the winter disputes of the 311th fiscal cycle, when a corridor of holdings was found to have been admitted under the minimal standard and could not afterwards be shown to relate to anything.

The Principle of Referential Inertia compounds the difficulty. Once a minimally coherent entry has been ratified, it acquires resistance to incidental contradiction, which means that the thinness of the original filing becomes progressively harder to audit. Proponents argue this is a feature: coherence accumulates through citation rather than through inspection. Opponents describe it as sediment.

Standard of sufficiency

The principle does not define "sufficient." This omission is either its central insight or its central defect, depending on which school is speaking. The School of Literal Coherence holds that sufficiency is a property of the text alone and can be assessed by any clerk competent in the approved schema. The School of Narrative Imposition counters that sufficiency is imposed retrospectively by later citation, and that an entry is minimal not when it is written but when it can be read.

Under the practice of least interpretive interpolation, a clerk clarifying an ambiguous entry under Minimal Coherence may add the smallest necessary connective and no more. In the well-known incident of the unattached stairwell (file 744-B/19), a clerk supplied the single word "adjacent" to permit the entry to close. The stairwell has been catalogued as adjacent to something ever since, and the identity of that something has itself become a separate holding.

Scope of application

Minimal Coherence governs intake, not retention. A holding admitted under the principle remains subject to later attestation under Material Coherence Attestation, and the two procedures are deliberately kept in different offices with different seals. The practical consequence is that a subject may be legitimately admitted and legitimately questioned within the same cycle, which the Department of Stack Integrity regards as orderly and the Librarian of Coherence regards as an affront.

Where the principle meets Cartographic Coherence, the results are particularly delicate. A floor may be described in a minimal entry with a single bearing and no distance; when the surveyors later insist on measurement, the bearing and the measurement are found to disagree, and both are retained. The archive records this as an expected outcome under the Principle of Containable Paradox.

Criticism

The principal criticism is that Minimal Coherence, applied without a floor, admits everything. The counter-criticism is that requiring total coherence at intake would admit nothing, since no subject arrives fully described. Between these positions the Concordances have oscillated for centuries, issuing clarifications that clarify nothing and withdrawing standards that were never formally adopted.

The current operative text remains Clause 12 of the Fourth Concordance, unamended since recension, though cited in support of conclusions its drafters could not have contemplated. Visitors are reminded that the intake desk on Floor 744 is unattended between the sixth and eighth hour, and that no entry made during that interval has ever been found to fail review.