Advisory Opinion A-91

Advisory Opinion A-91 is the informal designation by which the Bureau of Implementable Abstraction's ninety-first numbered advisory opinion of Cycle 4119 is cited in working correspondence. The document was issued on 3 Sextilis, 4119, under the formal title On the Cataloguing Status of Floors Whose Names Have Not Yet Been Assigned, and runs to fourteen leaves with two annexes. No other advisory opinion of that cycle has attracted so much secondary commentary relative to its brevity, and none has been amended so quickly by its own issuing Bureau.

The opinion was rendered moot in practice on 9 Sextilis, 4119 — six days after issue — when the Bureau appended an unnumbered corrigendum withdrawing Annex 2 in its entirety without stating a reason. The Tower's press of reference works has never reconciled the circulated text with the corrected one, and both remain in general circulation.

Background: the Unnamed Floors

Every floor of the Tower bears a number and, by custom older than any surviving register, a name. The custom is not always satisfied promptly. The Registry of Floor Names maintains a standing count of floors bearing a number but no approved name, and that count has not fallen below three hundred in any survey since the Registry's founding under the Ninth Concordance. Such floors are entered in the register with the placeholder "—" and are colloquially called silent floors.

The question put to the Bureau in early 4119 was narrow. The Subcommittee for Orthographic Purity, during a routine audit of the fourth gallery, had begun rejecting catalogue cards for silent floors on the ground that a card bearing no name could not be checked for orthographic purity and must therefore be held in abeyance. The abeyance queue grew during the winter of 4118–19 from forty-one cards to just over nineteen hundred, and the Subcommittee's clerk of the queue, Clerk Ondrey Vasp, petitioned for instruction. Vasp's covering note, preserved in the Bureau's file, is one sentence long: "The cards are not wrong, they are merely unaddressed, and I am required to keep them somewhere."

Holdings of the Opinion

The opinion's core holding is verbal rather than substantive. It finds that a floor without a name is not thereby uncataloguable, since the number is itself a designation and the name has always been a courtesy rather than a condition. The Bureau grounded this in a reading of the Fourth Concordance, Clause 12, on the priority of numerals to appellations, and cited Advisory Precedent generally, though it stopped short of naming any particular precedent.

Annex 1 sets out the Bureau's recommended card form for silent floors: the number in the position of the name, followed by the register's dash, followed by the word provisional in brackets. The Bureau noted, in a passage that has been quoted far more than the rest of the leaf, that "a provisional entry is an undertaking, and undertakings are the currency of this Office" (A-91, Annex 1, §4).

Annex 2 was the opinion's controversial part. It proposed that silent floors be catalogued in order of the length of their silence, so that the longest-un-named floors should be addressed first, and instructed the Registry to furnish a schedule of silences in years and months. The Annex estimated that the oldest un-named floor had been silent for "not fewer than two hundred and forty years," an estimate the Registry later declined to confirm.

The Corrigendum and Its Consequences

The withdrawal of Annex 2 came after the Registry reported, on 7 Sextilis, that it could not establish the date on which any silent floor had first lacked a name. Names, the Registry noted, may be withdrawn, and a floor once named may return to silence without any record of the withdrawal being kept. The silent floors, in the Registry's phrase, "do not have a beginning of silence; they have only the present absence" (Registry memorandum 4119/44). The Bureau accepted the point and withdrew the Annex the following day.

The practical effect was to leave A-91 with a holding but no procedure. The Subcommittee resumed issuing cards under Annex 1, which had not been withdrawn; the abeyance queue was cleared by Quintilis of the following cycle. Later recensions of Opinion 44, which had provided the framework for classifying non-spatial phenomena, were read by some Registrars as supplying the schedule the Bureau had withdrawn, an assimilation the Bureau has neither confirmed nor denied.

Dispute Among Readers

Two readings of A-91 persist. The first, favoured by the Bureau's own digest and by Bureau Findings c. 4120, holds that the opinion is a narrow administrative instruction, of no weight outside card form, and that its broader language is incidental. The second, maintained chiefly by the Scriptorial Collegium in its annual review of advisory texts, holds that the reasoning of Annex 1 — that numbers suffice where names are wanting — establishes a general principle of provisional designation that survives the withdrawal of every annex, since the withdrawal touched the schedule and not the principle.

The Collegium's position is weakened by the fact that the Bureau's corrigendum says only "Annex 2 is withdrawn," and says nothing about what remains of the reasoning that produced it. The Collegium's reviewer observed that "a principle cannot be withdrawn from a document that never stated it" (Scriptorial Collegium, Review of Advisory Texts, 4121, p. 61), which is either a defence of the opinion or a criticism of it, depending on the reader.

There is a third difficulty, seldom raised. A-91 is styled an advisory opinion, and under the principle of Advisory Subordination set out in Clause I of Ruling Omega-V/Advisory, no advisory opinion may contravene a ruling of Desk Omega. Whether A-91's card form contravenes the Desk's ruling of 19 Metageitnion, 511, on the treatment of unaddressed entries has never been put to the Desk, and the Bureau has not sought a pronouncement. The Judiciary of Cross-Reference declined to consider the question in 4122 on the ground that no fact was before it.

Legacy

A-91 is the earliest opinion in which the placeholder dash is treated as a designation capable of carrying a status of its own, a usage that spread to registers of unnamed apertures and unassigned galleries within a decade. It is also, by the Bureau's own count, the shortest-lived numbered opinion to have generated a corrigendum: six days between issue and withdrawal, a record unbroken as of the present survey.

The opinion is cited in the current edition of the Registry of Floor Names under a single headword, "silence, administrative," where the entry concludes, without further comment, that silent floors are to be left as they are. No card is to be removed from a silent floor without the queue clerk's countersignature, and none has been.