Dead Data

Peter Kade left behind forty-six boxes of engineering notes and no digital estate plan. His widow had donated them to a university archive after his death, apparently because she believed technical historians might care about obsolete machine-learning infrastructure. Nobody had requested them until Ivo did.

The archive sent photographs first. Kade's handwriting filled notebooks with diagrams, equations, grocery lists and irritated comments about managers. He drew little coffins beside code he wanted deleted.

"I like him already," Ivo said.

Mara replied, "He deleted files from my recorder."

"I like him provisionally."

One notebook from 2011 contained a section titled DEAD DATA. Kade used the term for source features that no longer retained provenance. During early training, donor material had been transformed repeatedly. A gesture from Helen might become a motion representation, then part of a composite family prior, then part of a distilled production model. By the final stage, the system could reproduce the behavior without retaining a direct pointer to Helen.

"That's why some source fields say unknown," Ivo explained. "The lineage was technically destroyed."

Elias looked at the diagrams. "Destroyed accidentally?"

"Initially, maybe. Then deliberately. Storage constraints. Performance. Privacy. Distillation was normal."

"Except it meant nobody could later tell whose details survived."

"Yes."

Mara sat with June's notebook beside her. "So if my sentence got into the model, eventually it could come back out without my name attached."

"Exactly."

"Like a ghost."

Ivo grimaced. "Don't call it that."

"Why?"

"Because then somebody makes a documentary called Ghost in the Memory Machine and I have to move countries."

Elias turned a page. Kade had drawn a family tree.

At the top were donor families, including VENN. Below them FIRST COPY.

Below that FALLOW PRIOR. Below that MORROW SEED.

At the bottom, a box labeled HOME. Beside it he had written:

Users do not trust accurate scenes. They trust scenes with relational behavior that matches expectation. Home is not geometry. Home is prediction.

Mara read over Elias's shoulder.

"He understood."

"Technically."

"That's worse."

Another note, dated three months later: MV complaint valid. We are leaking identifiable family behavior. Rohe says remove obvious donor markers, preserve relational coherence. Can't do both cleanly.

Then: Built scrubber. Hand morphology fixed. Dialogue targets harder.

Elias looked at Mara. "He may have tried to fix it."

"After taking my recorder."

"Maybe he was testing it."

"That is a generous reconstruction of a man you've never met."

He accepted the correction. The final notebook contained a sealed envelope taped to the inside cover.

The university archivist opened it on camera at Celia's request. Inside was a printed hash string and a handwritten sentence.

FULL FIRST COPY ARCHIVE NOT DESTROYED. COLD STORAGE. IF THEY EVER CLAIM OTHERWISE, ASK FOR ORPHEUS. Ivo stopped smiling.

"What's Orpheus?" Elias asked.

"I don't know."

Mara looked at him. "That phrase has become contagious." Celia searched Morrow's asset inventory.

No Orpheus. Lena searched old Fallow project lists.

Nothing. Tess searched company filings.

Nothing. Then Elias remembered something from Part One's legacy archive: one restricted storage class he had never been able to open, labeled ORP-ARCH.

At the time he assumed ORP meant orphaned research projects. Ivo stared at him.

"Orpheus archive."

The name was fitting in the worst possible way. A project about retrieving the dead.

Ada Mercer's name appeared once in Kade's notes before anyone knew who she was. A.M. understands dead data problem. Trusts provenance more than product.

At the time, Elias assumed A.M. was another engineer. Ivo found a conference program from 2016 listing Ada Mercer as a doctoral researcher presenting a paper on archival uncertainty in synthetic media.

"She was warning about this before it became fashionable," Ivo said.

Mara replied, "Suspiciously competent." The dead-data notebooks also contained evidence Kade had tried to build a provenance scrubber that removed donor identity from outputs while retaining useful generic patterns. The project failed because the very features users found most familiar were often the most identifying.

A mother's particular way of touching a child's hair. A father's half-laugh before apology.

A sibling's phrase. Strip enough specificity and the reconstruction became generic.

Keep specificity and somebody else's person survived inside it. Kade wrote:

No technical solution to a consent problem. Stop pretending compression will save us. Ivo photographed the sentence.

"Every engineer should have this above their desk."

"Including you?" Elias asked.

"Especially me."

Later in the notebook, Kade described arguing with Rohe about deleting First Copy. Rohe: remove it and system loses relational quality.

Kade: then system should lose relational quality. Rohe: users reject scenes that feel generic.

Kade: maybe generic is honest. Mara read it twice.

"I like him again."

"Provisionally," Ivo reminded her.

"Always."

Peter Kade's engineering boxes arrived at the university archive in no useful order. A graduate student had created broad categories, but Kade apparently believed dates were a personal attack. Circuit diagrams sat beside grocery receipts. Source-code printouts were used as backing paper for children's drawings. One folder labeled TAX contained notes on voice segmentation and a recipe for lamb stew.

Ivo looked delighted. "Finally, documentation by someone who understood real systems."

Elias opened another box. "You mean chaos."

"Same thing after funding ends."

They worked under the supervision of an archivist who did not care about Morrow and cared intensely about pencil use near originals. Mara liked her immediately.

Kade's notes revealed that First Copy had originally been a performance shortcut. Early hardware could not generate convincing relational behavior quickly enough during sessions, so engineers cached common interaction patterns. Those caches became reusable. Reusable became ranked. Ranked became optimized.

"Technical debt with human faces," Ivo said.

A 2009 notebook contained a diagram labeled FAMILY PRIORS. Beside it Kade had written: Do not allow familiarity score to overwrite source confidence. Different quantities.

Elias stared at the sentence.

"He knew."

"At least this engineer knew," Ivo replied.

Another page showed that his warning had been implemented for six months. Then a later revision merged the two scores for usability. The reason listed was therapist confusion.

Mara read it over Elias's shoulder. "So they made the interface easier by making the truth harder to see."

"That's one interpretation."

"It is literally what happened."

"Yes."

She smiled. "Training works."

They found references to Orpheus as a cold-storage migration project. Kade had been instructed to preserve raw provenance because he distrusted future normalization tools. He created checksums, offline copies and a read-only dependency map. Officially, those archives were later destroyed after Morrow's incorporation.

Unofficially, Kade's notes contained an address.

Ivo photographed it. "Could be decommissioned."

"Could be empty," Elias said.

Mara leaned against a shelf. "Could be a dungeon full of servers humming people's childhoods."

The archivist looked up sharply.

"Metaphor," Mara told her.

"Please keep metaphors away from the boxes."

Near closing time Elias found a sealed envelope addressed to Kade's widow. It had never been mailed. He stopped before opening it.

The archivist noticed. "That isn't part of the unrestricted collection."

"I know."

A year earlier curiosity would have created an argument inside him. Now he returned it to the folder.

Ivo watched. "Character growth. Disgusting."

"I'm tired."

"Whatever helps."

On the train home they reviewed only the authorized notes. Orpheus was no longer rumor. It had been a deliberate technical decision to preserve the ugly version of the data before later systems cleaned it.

Mara sent a message to June: Found evidence the old raw archive may survive. No need to respond tonight.

June replied immediately: Thank you for saying that last part.

Elias read the message twice.

Information could be urgent without making people permanently available to it. Another distinction Morrow had never learned.