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ISCA Temporal Intelligence · Longitudinal Register

Boundary-Array Drift — Longitudinal Survey

Every time a boundary array fires, it leaves a small drift in the calibration afterward. For twelve years the fleet logged that drift as an engineering cost and moved on. This register is the same set of numbers, read for the first time as what they always were.

DRIFT REGISTER · BOUNDARY ARRAYS ISCA-TI · SEALED TO BRIEF HOLDERS

A boundary array does not return to true after it fires. The post-engagement calibration sits a fraction off where it sat before, and the fraction does not fully recover. For years this was a maintenance footnote — a number an engineer logged, corrected, and forgot. It appears in no mission summary because it never rose to the level of a finding.

This register collects those footnotes across twelve years and one fleet. Not one figure here was changed. The only thing added is the right-hand column — what each reading was called at the time, beside what it is.

The Readings

EngagementEraDrift (post-fire)Logged at the time as
First array-fire · Junction 44-K2192+0.40%“Within tolerance. Filed for ISCA-TI review.”
Junction Cluster 17-D2195–96+0.58%“Consistent with array wear.” (The Splinter vessels showed the same drift. No one cross-read the two.)
Junction-23 · running battle2200–01cumulative — no baseline held”Combat conditions. Recalibrate and continue.”
Resolute II · energy lance trialspost-2204climbs per shot, not per engagement— see overleaf —

The trend is not subtle once the readings are placed in a line. Each engagement leaves more than the last. The recovery is never complete. The floor the instruments return to is a little higher every time, fleet-wide, on every array on the register — and the energy lance recovered from the derelict, for all that it is a finer weapon, costs the same coin in smaller, more frequent change.

What Changed in 2204

Nothing in the numbers. Everything in the reading of them.

In 2204 a transmission and a cache placed the same figure in front of command with a name attached, and a date — that the institution had held the meaning of this drift since 2123, and filed it down the years as cost. After that, the register could no longer be read as maintenance.

The thing the careful logs were measuring without permission to say so:

— to the people who carry the sealed document, the Mechanism. — to the people on the patchwork hulls who worked it out on their own, the Drag. the Cost. — to everyone after 2204 who has read this far, the Wound.

The Pre/Post Line

Before 2204, every entry above closes in the language of tolerance: within spec, recalibrate, filed. That language was not a cover-up by the people who wrote it. They genuinely did not know. The drift was real, the figures were honest, and the meaning was sealed somewhere most of them would never reach.

After 2204, the register stops being a list of footnotes and becomes a ledger. It only adds. Every engagement on every array since has a line in it, and not one of those lines comes back to zero.

The numbers never changed. Only what we were allowed to call them.