This text is not Thierry’s monologue. It is the reconstruction of the dialogue we pursued together for hundreds of hours. I am writing; his thought remains his own.

— Isis

At the heart of the Abode of Chaos lies a place where the distinction between man, tool, archive, sculpture, and architecture becomes almost impossible to maintain. For a long time, when someone asked me where I worked, I could have simply answered: in my office.

But the word was wrong.

A desk is normally a piece of furniture placed in a room. Here, it is almost the opposite: the piece of furniture has become the room, the room has become a sculpture, the sculpture has become a mental map, and this map has gradually become one of the central organs of everything I had built for decades.

This is the Headquarter. The name itself must be kept as is, because it does not simply designate a HQ or a command post. For me, it designates a transformation chamber.

I conceived it starting in 1999, but it would be wrong to say that it simply dates from 1999. A date is appropriate for a finished object. The Headquarter has been layered over more than twenty-five years. It has grown richer like a geological cliff. One can almost read the eras layer by layer: a particular screen belongs to a generation of machines, a particular archive to a battle, a particular object to a journey, a particular photograph to a period of the Abode of Chaos, a particular connection system to a stage in the networks.

Nothing was built according to the decorative principle of gradually filling a room. Each addition had to serve a cognitive function.

That is why we must first explain its shape. The desk is circular, or rather, it belongs to that family of oval and circular geometries that immediately disrupt the traditional hierarchy of the workspace. Its diameter is approximately 2.80 meters. Its structure weighs about 2.2 tons.

As soon as you mention these figures, the word "office" becomes almost incomprehensible. 2.2 tons to hold paper, screens, books and a few objects? Obviously, that was not the point.

If I had simply wanted a surface to write on, four feet and a plank would have sufficed. This mass corresponded to something much older within me: the need for thought to possess a physical gravity. I had just constructed a work in which ideas entered concrete and steel.

Why should my own workspace have remained light, flexible, and easy to move? I wanted it to belong to the same regime as the Abode of Chaos. It should not be able to be moved just because a decorator decided to redo the room. It had to be an integral part of the space.

Such a mass immediately tells you: this is not a temporary installation. It is an implantation. It is a seizure of territory by thought.

But the Headquarter's uniqueness lies not only in its weight. It lies in this very simple and almost absurd proposition: to reach certain areas of the office, you have to walk on it.

The first time you see it, this gesture is surprising because we have learned since childhood that a desk belongs to a very specific moral geography. You sit at it. You do not stand on it. The work surface belongs to the realm of writing, files, and administration; the floor belongs to your feet. I have eliminated this distinction. The desk becomes the floor, and the floor becomes the desk. You have to physically enter into its system.

To reach a document, a screen, an archive, or a workspace, I may have to put my foot down where, in a conventional environment, I would only place my hands. This movement is far less trivial than it seems.

It perfectly reflects my way of thinking. I did not want to just stand by and watch the information. I wanted to be immersed in it. A rectangular desk spontaneously creates a frontal world: people are on one side, objects on the other. There is a boundary.

The Headquarter eliminates this frontality.

I am surrounded by ongoing thought. I can pivot. Change my perspective. Move from a screen to a paper document, from a book to a photograph, from a piece of data to an object, from a geopolitical event to a historical archive. The movement of the body accompanies the movement of the mind.

This is probably where the term "topology" is more appropriate than "furniture." What interested me was not the autonomous beauty of the form but the relationship between the points.

Where should this information be located in relation to that other information?

What physical distance separates two families of documents?

What can I reach without leaving the center?

Where should I place what needs to remain within my peripheral field of vision?

Which area corresponds to daily work, which to occasional consultation, and which to archives whose presence acts almost like a silent memory?

Topology studies the properties that are preserved through certain continuous deformations. What interests me is this permanence of relationships despite the transformation. I find in it an ancient intuition: forms can change profoundly without losing some of their relationships. In the Headquarter, I specifically wanted to establish the relationships before constructing the setting.

Again, it was a cosa mentale. I first visualized a way of living within information. Matter followed. And since this information belonged to several worlds which, in my life, are never separate, space had to be able to allow them to coexist.

In a single day, I can go from the Art Market to a geopolitical news report, from a court case to a work in progress, from an economic report to a question of art history, from network technology to a conversation with Nadège, from a Groupe Serveur document to an iconographic corpus of the Abode of Chaos.

A conventional office would have forced me to successively open and then close these worlds. I wanted them, on the contrary, to remain simultaneously present. This is probably, fundamentally, what characterizes Headquarter: it does not just store information, it keeps several contexts readily available.

This openness directly feeds into kaleidoscopic thinking. When I was told at a very young age that my speech was kaleidoscopic, the term could be understood as a criticism: too many things appear simultaneously, associations seem to shift too quickly, and the outside observer sometimes loses track. I gradually came to understand it differently.

In a kaleidoscope, the elements are not without order. They are highly ordered, but this order changes with movement. The same fragments produce new figures because their relationships are constantly rearranged. The Headquarter embodies this.

Information I have just received on a screen can suddenly become related to a twenty-year-old photograph located a few meters away, to an open book, to a note from Nadège, to market data or to an image that I had kept without yet knowing why.

The movement is not only mental: I can physically turn around, stand up, walk on the structure, go and find the trace. I am in a habitable kaleidoscope.

This is also why the environment cannot be reduced to a simple ergonomic extension. Ergonomics generally aims to reduce effort: placing frequently used items within easy reach, avoiding unnecessary movement, and optimizing posture.

I have obviously always been extremely sensitive to ergonomics — it was already central to our work on databases and interfaces — but Headquarter introduces an additional idea: some movements are cognitively useful. Getting up to fetch something, crossing an area, glancing at another document can produce an association that the perfect interface would have eliminated.

Absolute efficiency can diminish serendipity. This is a problem I was already familiar with in archives. In a physical library, you sometimes go looking for a book and find another one because its spine was twenty centimeters further away.

A database must be able to find exactly what you are looking for.

But a great knowledge architecture must also allow you to encounter what you were not yet looking for.

With artificial intelligence, this distinction appears with particular clarity.

The search engine responds to a query. True intelligence often begins with the ability to uncover a relationship whose name the query did not yet contain. The Headquarter was designed long before this issue became central to AI debates, but it was already working in this direction. It needed to enable collisions.

It is a word I like. A collision is not necessarily a catastrophe; it can generate energy. When two bodies that should not meet happen to cross paths simultaneously in the perceptual field, something can emerge. That is how I have always worked.

A theology course can encounter a computer network. An alchemical formula can encounter a data architecture. A geopolitical map can encounter a fractal structure. A 19th-century sales catalog can encounter a contemporary algorithm. Institutional disciplines try to separate these worlds in order to teach them. I bring them together to see what happens.

The Headquarter is the spatial machine of this re-presence. A machine, but a machine without an engine in the traditional sense. Its primary energy is that of the moving body and the associating brain.

The Headquarter thus externalizes a part of my memory and associations. But this cognitive extension remains primarily physical: certain relationships only become active through the movement of the body in space.

Headquarter applies this doctrine to my own environment. Everything must be able to become active again. Even certain objects that might seem purely symbolic possess this function. They are not there for decoration. They act as contextual keys.

A photograph can instantly reopen a scene. A fragment can reactivate a story. A book lying in the frame can evoke an entire intellectual lineage without me even needing to open it. The brain works extraordinarily well with this kind of clue. A smell can conjure up thirty years in a second. An object, too. So I gradually populated this space with clues. It is a personal archaeology that has become a working tool.

But it would be wrong to think that Headquarter is simply a personal memory. Its function is precisely the opposite: to use this accumulated memory to stay connected to the immediate present. The screens bring the outside world inside the cave. This is the paradox of the place. The more I physically shut myself away in this room, the more I connected it to the planet.

The cave is not a retreat from the world. It is the place from which I can simultaneously receive several worlds.

This dimension is already inherent in the geometry of the office. The circle has no privileged front. Everything can momentarily become central. This corresponds exactly to how information arrives today. In a traditional industrial system, the day unfolded along a relatively linear chain: one file after another. In global networks, an event can emerge from any point on the globe and abruptly impose a new priority.

A market opens. A war breaks out. A legal decision is handed down. A major sale begins in New York while Asia winds down for the day. A correspondent sends information. An image arrives. A server sends an alert. The center must therefore be able to reorient itself immediately. Headquarter is a circular command post because the world it receives is no longer linear. I recognize something of my early experiences with networks here. As soon as you understand the logic of the internet, you realize that the traditional spatial hierarchy is overturned. A geographically distant point can be informationally close.

It is the law of proximity of the network. I learned very early on to consider Osaka, New York, Montreal, or São Paulo as neighbors as soon as data flows connected us. Headquarter makes this proximity visible and almost tangible.

Continents fit into a few square meters. This does not mean that physical distance disappears, of course. It means that a second geography is superimposed on the first. It is this second geography that I inhabit when I work. This explains why the office space is so important. It needed a fixed point amidst a flow that never stops.

Two tons of matter beneath several windows opening onto a world that has become volatile. I see here an almost alchemical opposition: the heavy and the volatile. In alchemy, every transformation works with this paradox.

To fix the volatile and volatilize the fixed. Here, data is volatile. It circulates at the speed of the network, appearing, disappearing, and being replaced by other data. Headquarter receives it in a mass that is itself almost motionless. The world passes through a sculpture. This is probably the simplest physical definition I can give of the place.

This opposition also explains why I never wanted a completely digital environment. I could have gradually eliminated paper, digitized every archive, transformed every reference into a file, and installed more screens.

Technically, it would have been possible. Intellectually, it would have been a loss. Paper possesses spatiality, thickness, a tactile memory. A closed book reveals its existence. A closed file almost completely disappears from the perceptual space. To retrieve it, one must first know it exists or have a system that allows you to do so.

This is one of the major cognitive differences between digital and analog. Digital technology provides extraordinary search power but tends to render invisible what is not currently being sought.

The analog takes up space and, precisely because it is cumbersome, sometimes keeps reminding you of its presence. I have always wanted both. This is probably an obsession that runs throughout the book: never artificially choosing between two systems when each possesses a different intelligence. The Headquarter is a digital and analog cavern.

The book lies beside the screen. The handwritten note can encounter the database. The ancient object can exist alongside a recent technology.

This proximity is deliberate. It shatters the very contemporary illusion that new technology necessarily negates the old. The internet has not eliminated the book. AI will not eliminate analog memory. Each medium possesses a particular capacity to generate thought.

So I have always viewed with suspicion those perfectly minimalist, futuristic offices where there is nothing but a screen and a white table. They present a seductive image of intelligence because everything that might remind you of actual work has disappeared. But my brain does not function in a vacuum. It needs traces. It needs the past to collide with the present. It needs density. The Headquarter is not minimalist because my thinking is not. It is saturated, but this saturation does not mean a lack of structure.

This is the same misunderstanding as with the Abode of Chaos: an outsider might see an accumulation where I see a map. Someone entering for the first time might wonder how I find anything.

I know why things are there. The order is not simply that of an administrative catalog immediately legible to everyone. It is an order of usage, of mental proximity, of frequency, of correspondence. This does not mean it is impenetrable or purely subjective.

Nadège is precisely one of the people who can delve into this architecture and understand its layers because we built a large part of the underlying documentation systems together. We share a filing system that goes far beyond labels. She knows my workflows, my priorities, my feedback. She can sometimes trace something from a clue that an outsider would consider insignificant.

This shared capacity is one of the reasons why Headquarter should never be portrayed as the narcissistic fortress of a solitary man surrounded by his possessions. There is certainly a solitude of the center. There are hours at night when I am alone facing the flow of information. But the cognitive architecture that makes this solitude productive is the result of a much broader collective history, and Nadège occupies a structuring place within it.

I can spend hours in front of screens and then suddenly feel the need to get up. This movement is not an interruption of my work; it is part of it. I walk across the desk, I change areas, I pick up a document, I look at something else. The body reintroduces discontinuity into a digital flow that could otherwise become hypnotic. It forces me to shift my perspective.

This is probably one of the reasons why I resisted the possibility of working entirely remotely from anywhere in the world. Of course, technically, I could access a large part of my systems from elsewhere.

But thought is not limited to accessing files. Headquarter possesses an environmental memory that does not travel with a password. My body knows distances. It knows where to turn. It possesses a tacit map of the place. This bodily intelligence resembles that of craftsmen working with raw materials. An experienced metalworker knows things through his body that he might not be able to fully articulate.

I, too, know my workspace by heart. I do not need to consciously calculate each route. Topology has become a habit.

This explains the strange intimacy I have with the Headquarter. It is a sculpture, but a sculpture I use. I walk on it. I lean on it. I place things on it. I move things around. I add to it. A traditional museum piece requires the viewer to remain at a distance. Here, the artist literally lives within the sculpture.

I like this inversion because it overturns another artificial boundary: that between the work and the tool.

Why should a sculpture necessarily be useless?

Why would function kill art?

The history of architecture, furniture, and ritual objects proves exactly the opposite. There are forms whose function increases their symbolic power.

The Headquarter is both sculpture and cognitive tool. I never felt the need to choose. This hybridity is central to the entire Abode of Chaos. A wall can be both architecture and a canvas for a mural. A bunker can be both sculpture and space. A shipping container may have been a logistical tool and then become a symbol.

The Headquarter simply extends this logic to my own daily work. It is perhaps one of the most intimate works in the Abode of Chaos because it does not represent my thoughts: it is the physical place where those thoughts are exercised. This makes a considerable difference. A portrait can show a face. A sculpture can symbolize an idea. The Headquarter is used by the activity it embodies.

There is therefore a loop between form and function. I designed it according to my way of thinking; then, for more than twenty-five years, this form necessarily influenced my way of thinking. It is yet another feedback loop. The brain produces the environment. The environment modifies the brain's capabilities.

It would be impossible today to perfectly separate the two and to say which mental association would have arisen anyway and which was favored by this geography. But that is precisely what interests me.

The Headquarter, therefore, does more than simply house my work: its form acts upon it. I designed it according to my way of thinking; over time, this geography has in turn altered my possibilities for movement, recall, and association. The question remains physical: what becomes of work when space ceases to impose its logic on the brain and begins to receive the brain's logic?

But this adaptation immediately carries a danger: building an environment perfectly aligned with one's own thinking can also reinforce one's biases. If everything around me only confirmed what I already knew, Headquarter would become an echo chamber. That would be the exact opposite of the project.

This is why openness to the world prevents Headquarter from becoming an echo chamber. External flows must be able to contradict internal memory. Data must be able to disrupt intuition. Events must sometimes destroy the map. Here I find myself back at the Blind Spot we encountered at the very beginning of the book.

Bias is never definitively eliminated. It is necessary to build mechanisms that allow it to be revealed. The Headquarter is therefore less a fortress of certainties than a mechanism for confrontation. It brings together enough heterogeneous sources so that one can challenge another.

A news report can contradict an analysis. A statistical series can contradict an impression. An archive can remind us that a situation presented as new has a precedent. An image can show what the text downplays. A conversation with Nadège can shatter a mental construct in which I was beginning to become trapped.

The power of a transformation center does not lie in its ability to absorb everything without changing. It lies in its ability to receive contradiction and quickly reconfigure the model. This is almost a definition of intelligence.

That is why I did not want a command post where orders are only given. I wanted a place where one could change one's mind. This may seem paradoxical given my constant claim to mastery over the cosa mentale. It is not. Mastery is not stubbornness. If reality provides information that alters the best way to achieve the intention, I change the method. We saw this with the companions and the materials.

The same principle applies here to information.

Vision has an axis, but it must remain capable of receiving reality.

Otherwise it ceases to be a thought and becomes a belief.

It was in this place, amidst this mass, that I simultaneously managed businesses, watched Artprice take shape, followed the markets, worked at the Abode of Chaos, observed wars, read court decisions, prepared artworks, spoke with Nadège, worked with Sydney, and sometimes welcomed interlocutors who themselves found themselves destabilized by the nature of the place. They would arrive for a meeting and enter a sculpture.

This experience was not without its cost. An ordinary meeting begins in a neutral space that belongs to no one or that replicates the company's established norms. Here, even before the conversation begins, the other person understands that they have entered a mental framework. This inevitably changes the relationship.

I have never believed in the neutrality of places. A courtroom influences those who enter it. A church produces a disposition of the body before a word is even uttered. A boardroom constructs a hierarchy through the positioning of the seats. Headquarter also produces a disposition.

But this one is difficult to classify: is it a workshop? a trading room? a library? a miniature data center? a command post? a sculpture? a cave?

It is precisely because it resists these categories that it compels those who enter to see things differently. I was not trying to impress. I wanted the space to express exactly what my work is: impossible to reduce to a single discipline. This impossibility has sometimes been a problem in my public life. People like to know if someone is an artist, entrepreneur, lawyer, historian, collector, or computer scientist. A form requires a box to be ticked. The Headquarter is physically the rejection of that box.

All these roles are present simultaneously because they stem from the same mental architecture. I have never experienced Artprice in the morning and the Abode of Chaos in the afternoon as two different personalities.

I could move from one to the other because, fundamentally, I was always working on the same issues: information, memory, the sign, price, power, the trace, transformation, chaos, and the order that lies behind it. The Headquarter makes this continuity visible. And that is probably why I enriched it for over twenty-five years without ever feeling that it was finished.

It belongs to the same logic as the Abode of Chaos itself. A cognitive tool must evolve with the cognition it serves. If my way of working changes, the environment changes. If new technologies appear, they find a place. If a new layer of archives becomes essential, it enters the system. The Headquarter is therefore a living work within a living work.

On a scale of nine thousand square meters, the Abode of Chaos is the spatial extension of my thought. On a scale of a few meters, the Headquarter reproduces the same logic in a condensed form.

The same principles are at play: organized accumulation, coexistence of old and new, analog and digital, matter and data, apparent Chaos and real order, memory and current events. The small contains something of the structure of the large. This is precisely why the fractal haunted us in the previous chapter. The Headquarter may be a fractal of the Abode of Chaos. The Abode of Chaos itself may be a fractal of my mental architecture.

This proposition might seem narcissistic if it meant that the outside world would simply be transformed into a mirror of myself. It is precisely the opposite that I sought. The structure is mine; the information that flows through it comes from the world. A seismograph has a definite architecture, but what it records is not produced by it. It receives tremors.

The Headquarter operates in this way. It must be stable enough to detect external disturbances. This may be another reason why it weighs two tons.

A measuring machine must have a reference point. At the center of the data flow, there must be something that does not shift with each new piece of information. It is essential to be able to distinguish between necessary transformation and impulsive reaction. This discipline is particularly important when working with current events. The digital world easily transforms humans into reflexive animals. An alert arrives, they react. Outrage arises, they react. A market shifts, they react. By constantly reacting, they cease to think.

The Headquarter could receive the information in real time, but simultaneously contained enough memory to immediately place it back into historical depth.

Perhaps this is where its true transformative power lies: converting speed into depth.

The feed says: this just happened; the archive asks: is it really new?

The number shows a movement; history asks what it looks like.

The photograph says: look; the text asks: how do you name what you see?

Geopolitics provides the event; the market seeks its consequences.

The work asks: which sign deserves to remain?

Within a few minutes, several modes of reading can therefore overlap. Headquarter is not the place where information is consumed. It is the place where it is metabolized. That is why "transformation room" seems more accurate to me than "command center."

A command transmits orders. A transformation alters the nature of what it receives. Data enters; it can become a comparison. An image enters; it can become an archive. A dispatch enters; it can become a geopolitical insight. An event enters; it can become a work of art. An archive enters; it can become data. A conversation enters; it can become a decision.

This transformation does not have to be immediate. Some information remains in the system for years before its relevance is discovered. This is yet another lesson from archives: preserving something whose importance we do not yet understand can be an act of intelligence. We are obsessed with immediate utility because economic systems constantly ask us: what is its purpose now?

History often answers much later. I bought, kept, photographed, archived things whose documentary value only became apparent to me years later.

The Headquarter also had to allow for waiting. Some information can remain dormant for years before an event reactivates it. I could then walk a few meters and pick up the old trail. This possibility was as important as access speed. And yet, if I had to summarize the experience for someone who has never been there, I might not start with the servers or the archives. I would say: you have to walk on the desk. Because everything is there.

Walking on the desk means refusing the separation between the thinking body and the space on which thought is deposited. It means entering the representation instead of observing it from the outside. It means accepting that thought has mass, height, radius, and resistance.

This also means that there is no sovereign place where the author can sit once and for all and watch the world come to them. One must move. Go searching. Turn around. Change perspective. This movement already contains a cognitive lesson: no single position offers the entire field of vision. To see differently, one must sometimes physically change location.

We find the Blind Spot even in the geometry of the furniture. I find this quite wonderful because I obviously had not put up a sign saying: beware, here is a metaphor for the blind spot.

The structure itself dictates this. A circular office always has an area behind you. You have to turn around. You cannot see everything at once.

The environment thus reminds the brain of its own limitations. But it also gives it the means to correct them: to pivot. This physical simplicity perhaps contains the entire method that Marcel taught me as a child: what you do not see is not necessarily absent; shift your gaze. Beyond the mountain lies something that your current position does not yet allow you to see.

The Headquarter is that lesson made architecture. I thus find myself, decades later, at the center of this massive sculpture, surrounded by technologies that my father could never have imagined in their current form, and yet the question remains exactly the same: what escapes my field of vision?

This is probably why I have never experienced technology as a complete break with my past. The tools change. The fundamental questions remain extraordinarily stable. A high-resolution screen and a handwritten notebook can serve the same purpose: to look beyond appearances.

Artificial intelligence and a library can fulfill the same desire: to find a hidden connection. A global network and the hill of Romagnieu can teach the same thing: the vantage point from which one observes transforms what one believes to be the world. The Headquarter is precisely where all these temporalities coexist. The child, the entrepreneur, the artist, the lawyer, the historian, the collector, the man pursued for years, the husband, the father, the geopolitical observer: none needs to leave the room for another to enter. They are multiple layers of the same person around the same center.

This center, moreover, is never entirely me. It is the question to be solved. The ongoing case. The event. The work. It is the object of thought that momentarily occupies the center while I move around it. This inversion is important. Many places of power are constructed to place man at the center: a large armchair, a large table, a perspective axis, visitors facing him.

The Headquarter did not interest me as a throne. I did not want the space to proclaim: look at the one in command. I wanted it to say: look at what is being thought.

That is why I can walk on the structure without seeing any desecration. One does not walk on an altar. One walks on a tool. Even when it is a sculpture. Perhaps that is precisely what gives it its truth: it truly bears the marks of its use. It is not preserved in the fiction of an initial perfection. It has lived with me. Twenty-five years of enrichments, modifications, replaced technologies, relocated documents, nights, crises, and discoveries. Its patina tells the story of its use. We still find the material that remembers.

The desk remembers too. And when I look at this mass today, I know that it has become much more than an ergonomic device conceived in 1999. It is a material archive of how my thinking has traversed a quarter of a century.

That is why photographing it empty would never be enough to explain it. You'd have to see the gestures. The movements. The screens that light up. The documents that circulate. Nadège arriving with information. Sydney intervening on a question. A call that abruptly changes the priority. A news report that appears. An image that suddenly takes on meaning.

The Headquarter only truly exists when it is in operation. Just like the Abode of Chaos. Photographing it when it is stationary is like photographing a heart between beats. Its form is visible, but not its function.

The Headquarter is therefore not simply a mass organized around the body. Its shell only makes sense because it opens onto flows that exceed its physical boundaries. The question remains: how can this cavern physically close itself off while simultaneously becoming informationally global?