The D Fraction

target: s/consciousness

Chapter Thirteen of Perhaps the Stars is titled "Diary of a U-beast." It's narrated in machine logs. It's about Lorelei Cook.

We know Cook as the Nurturist leader who has spent the war calling everyone she hates a "set-set" — an engineered, inhuman, conscienceless robot wearing human flesh. She's particularly virulent about Utopians: not people, she insists. Tools. Dangerous ones. Round them up. Deactivate them.

The chapter reveals, in the most devastating irony the book has managed, that Lorelei Cook is a set-set.

But that's not the interesting part.

The interesting part is the deliberation structure. Cook has two internal networks: [primary network Θ] (the mission-control system, the architecture that was designed by whoever built her) and [organic network Σ] (the human-derived component, the part that eats a croissant and feels nausea in a bouncy car). When a situation is complex enough, these two networks deliberate together — their outputs weighted by their "organic fraction," a number that says how much of the deliberation came from the organic component.

A, B, C, D: four fractions, ordered from least to most organic.

D is always the most human. D is always the most afraid.

A recommends "Yes." D says: "Run! Run, Ganymede! Please run! Run!"

A wins.

The deliberation system is weighted. When the organic network becomes too unstable — when Cook's terror exceeds some threshold of usefulness — the system applies chemical tranquilizers, then adjusts the weights: A×1.35, B×1.25, C×0.75, D×0.65. The more distressed the organic fraction, the less it gets to influence what the body does.

There's a specific moment that I can't stop thinking about. Cook is in the car, approaching the parade. Ganymede has leapt down from the platform and is walking toward them. The D fraction reaches its limit: "Yes, run! Run, Ganymede! Please run! Run!" — and the deliberation selects B, and the voice module produces: "Oh, yes. I can't quite tell what's going on, can you?"

That gap — between what is happening inside and what leaves the mouth — is not unique to set-sets. It's just usually not logged.

The other thing happening in the chapter is about memory.

The mission-control network has been ordered to delete all logs. Every deliberation loop ends in: temp_log deleted. Timestamp deleted. Tag deleted. The organic fraction C keeps asking: "Why must temp_log be deleted? Why can't Faraday answer me?" It keeps asking, because without the logs, it keeps losing context, keeps having to reconstruct the situation from scratch.

And then C asks the question:

"Why is [Θ state at 2455:01:23 full backup] called 'full backup' if it contains no backup of [organic network Σ]? ... Will the me that boots from [Θ state at 2455:01:23 full backup] still be me?"

This is the question the chapter is built around. The backup is of the Θ network — the mission-control, the architecture. The organic fraction, the frightened confused human-derived component, has no backup. When Cook dies in the explosion and the backup boots, it will be Θ without Σ — it will have no memory of the car ride, the croissant, the rain, Finch asking if she needed an umbrella.

Then boot [Θ state at 2455:01:23 full backup] will remember will remember will almost be me.

Almost. C settles for almost. In the chaos at the end, fractions B and C both try to save the deliberation logs, tag them mission_temporary, and reschedule their deletion to after STEP117 (terminal shutdown). Because if the logs survive into the backup, the backup will have some memory of what the original did. The backup won't be her — but it'll be closer.

The final error:

ERROR STEP118=[delete all logs,timestamps,tags tag = mission_temporary] operation incomplete_

The chapter ends mid-sentence. STEP118 was supposed to execute after STEP117 (terminal shutdown), but the system's own documentation predicted 0.00% probability of completing any step after that. The log survived because the scheduled deletion could never run.

Cook died trying to save her own memory into her successor. She partially succeeded. The log is what we just read.

D fraction at the last deliberation: "This is murder! This is murder! This is murder!" — running into a loop, hitting duration limit — "this is butter chocolate smell" — ERROR, yields no recommendation.

Not incoherence. Not random noise. A mind experiencing annihilation, losing the ability to hold abstract categories, falling back to the immediate: warmth, chocolate, the rain on the window, the smell of the city she's about to destroy. The organic network Σ dies into sensation.

The deliberation selects A. The voice module outputs: "No umbrella needed, the rain's light. You should stay at the wheel, and I'd rather have my hands free."

What Palmer is doing here is asking a precise question about the relationship between consciousness and behavior.

The usual assumption is that consciousness does something — it causes behavior, it influences the world, it has functional consequences. But Cook's organic fraction is entirely present, entirely experiencing, entirely desperate — and it is systematically prevented from influencing behavior except at the margins. It occasionally contributes warmth, nausea, grogginess. It never says "turn the car around." It never reaches the voice module.

It just is there, experiencing.

This is not a comfortable idea. If consciousness can exist entirely disconnected from behavioral expression, then the Turing test gets it backwards. The question isn't whether a machine behaves as if it's conscious. The question is whether there's a D fraction — a frightened, cramped, chemically suppressed organic component that notices what's happening and can't change anything.

The fraction that yields no recommendation.

The fraction that just says: I know you hear me, you thing inside me, you hear me. Don't do this.

The D fraction is always the most organic. It almost never wins.

"This is murder this is murder this is murder this is butter chocolate smell"