A brain you can walk, built out of twelve paintings.

Twelve vertebrae. Twenty-four ribs. One address for everything.

Every piece of knowledge in this system lives at a fixed address on a skeleton with exactly twelve vertebrae. Off each vertebra hang two ribs: a brain rib that holds the meaning, and an accompany rib that holds the material — the photographs, the PDFs, the audio, the bytes.

Because the pair hangs off the same bone, the note about a painting and the photograph of that painting share an address. They cannot drift apart, get renamed out of alignment, or end up in two systems that disagree. There is no synchronisation step, because there is nothing to synchronise: one bone, two ribs.

Twelve is not a soft guideline. It is a hard structural constraint, the way a rib cage is a hard constraint. When a slot is not in use it is not empty — it is dormant, already named, already addressed, waiting. And a thing that has filled all twelve does not stop; it becomes a unit that can begin again at a level below.

What one neuron actually looks like

// every record carries the whole map — not a pointer to it
{
  "_map_version": "12.2-stones",
  "_rib": 7,
  "_rib_name": "WHO AM I?",
  "_ribs": [ /* the other ribs this leans toward */
      {"n":11, "name":"SELF PROTECTING MECHANISM"},
      {"n":2,  "name":"HEART ROCK"} ],
  "_you_are_here": "rib 7 WHO AM I? / 07_who_am_i/<this file>",
  "_placement": "placed",
  "_placement_why": "a rib was chosen — ownership lives at rib VII",
  "created": "2026-08-17",
  "title": "…", "tags": [ "…" ]
}

Pick that file up on its own, out of any folder, with no database and no index, and it still knows where it lives, what it leans toward, and why it was put there. The map is not a service the record depends on. The map is in the record.

What the structure buys you.

Nothing here is evened out.

These are the live counts. The ribs are wildly unequal, and that is the point — the shape of the cage is the shape of a working life, not of a schema someone balanced. Rib II is enormous because that is where the day-to-day went. Rib III is thin because it has barely been used yet.

1,895 of 1,916 records already answer the question “which rib?” — the structure reaches almost everything. But only 102 have been deliberately placed since the architecture was locked: a human choosing the rib and recording why. The remaining 1,814 were sorted by the older system and are being walked back one at a time.

Those numbers are published on purpose. A filing system that reports itself as finished is the one you cannot trust — and the gap between “has a rib” and “was placed” is exactly the work a machine cannot do on your behalf.

Touch one neuron. Four fifths of the brain moves.

This is the part that is not a filing system. A structure that only filed things would be a cupboard. What makes it a brain is that nothing in it is held alone — and that entanglement runs at six levels at once, only one of which is the obvious one.

My art is still organically induced — they are my ideas, what I paint. But now with the Imaginist it is like I have woven my mind into the web, and the web into me. Simon Aitchison · 17 August 2026

Why levels 05 and 06 are the ones that matter

Levels one to four are engineering, and a good engineer could build them from this description. Level five is architecture — the decision that permission is a property of the bone rather than a rule kept beside it, which is what lets four different intelligences share one memory without four copies of the risk. Level six cannot be built at all. It can only be accumulated, and it is why this particular brain answers the way it does rather than the way a generic one would.

What is not entangled — published on purpose

192 neurons — 8.1% — have no synapse at all. They are filed, they have a rib, they are findable by address, and nothing has ever been thought beside them. That is not a defect to hide; it is the most useful diagnostic the system produces. An isolated neuron is either something genuinely new, or something that was filed and then abandoned — and the structure is what makes the difference visible.

What is actually new here — and what is not.

Anyone can claim novelty. The useful version of this section is the one that says plainly which parts have existed for decades.

The claim worth defending is not "we invented a tree." It is that a fixed twelve, paired ribs, a decay floor and a self-locating record — together — make a memory that a machine can walk instead of search, and that a person can still read by hand in twenty years.

What this is good for, beyond one artist's archive.

The paintings came first. The architecture was found in them.

This was not designed on a whiteboard and then illustrated with art. It ran the other way, over sixteen years, and the software arrived last.

My art is still organically induced — they are my ideas, what I paint. But now with the Imaginist it is like I have woven my mind into the web, and the web into me. It is the transition from OIRA to AiRT. It was foreseen. Simon Aitchison · 17 August 2026

That sentence is the reason the architecture and the paintings are one body of work rather than two. OIRA — Organically Induced Recursive Art — described work where the recursion happened in the maker and came out through the hand. AiRT is what it becomes when the recursion runs in both directions: the mind shapes the system, and the system, holding sixteen years of the mind in an addressable form, shapes what gets made next. Rib XII is called The Imaginist for that reason. It is the rib where the two meet.

What is running today.

The brain is live. It is read by more than one agent, on more than one machine, including a local model that never sends anything to a cloud service. Retrieval is scored by structure — a match in the title outranks a match in the tags, which outranks the summary, which outranks the path — so a hit is explainable rather than a similarity score nobody can audit. Images resolve through one-time addresses that stop working the moment they are used, so a shared link is a single delivery and never a standing door into the archive.

It was built by one person, over sixteen years of painting and roughly a year of code, on a hosted server and two Macs. That is the other half of the claim: this shape of memory does not need a research lab. It needs a decision about what the twelve things are, and the discipline to never file anything outside them.

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