The Soul You Cannot Doubt

EDO SEGAL: I want to start this round with a confession instead of a question, because the best questions I know come out of wounds. For most of my life the one thing I never questioned was that I was here — that behind all the building and the failing and the loving, there was a continuous someone doing it, the same someone at five and at fifty-five, a thread that held. And then I read the Professor, and for about a week I could not find that thread when I looked for it. I would sit and try to locate the witness — the one watching the thoughts — and there was watching, but every time I reached for the watcher he had become another thought. It was the most disorienting week of my intellectual life. René, you found the witness and called him bedrock. Thomas, you say I went looking for a thing and found only a process. So let me put it to René first, naively, because the reader is standing where I stood that week: when I look inside and try to find the one who is looking — and I cannot — what have I discovered?

DESCARTES: You have discovered, Monsieur, the very thing you were looking for, and mistaken the not-finding for an absence. Of course you cannot find the witness as an object among your thoughts. He is not an object. He is the one to whom the objects appear. The eye does not see itself; it would be a strange complaint that, having looked everywhere in the visual field, you failed to find the eye. The looking is the proof. In that week you describe, every time you failed to find the watcher, something failed. Something was disappointed, kept searching, noticed the searching. That something is the cogito, and it does not need to be found as a thing among things, because it is the condition of there being any things to find. The Professor's whole argument trades on a sleight: he says, you cannot find the self as content, therefore the self is only content. But the one who cannot find it is exactly the self he says is missing.

METZINGER: That is the move, and it is the most elegant error in the history of philosophy, so let me take it apart slowly, because I respect it enough to. René says the self is not content but the condition of content — the one to whom things appear, never himself a thing. Listen to what that requires. It requires that there be a to whom — a subject, a center, distinct from all the contents and somehow receiving them. And here neuroscience does not give me an opinion; it gives me a finding. There is no such center in the brain. There is no place where it all comes together, no Cartesian theater where a self sits watching the show. What there is — and this is the deep discovery of my field — is a process that models a center. The brain builds a representation of an experiencing subject, a point of view, an owner of the contents, and it weaves that representation in among the contents so seamlessly that the system cannot tell the model of the witness from a real witness.

Edo, in your week of not-finding — you were closer to the truth than René will let you be. You looked for the watcher and found only more watching, more thoughts about the watching, the search itself becoming a content. That is not a failure to find a hidden self. That is a direct observation of the fact that there is no hidden self — only the modeling, all the way down, with the model of an owner included in the package. The reason it felt disorienting is that you briefly saw the window as a window. Forty years on the cushion is, in part, learning to keep seeing that without falling apart.

DESCARTES: But Professor — who modeled the center? You say the brain builds a representation of a subject. A representation is a representation to something. You have not removed the subject; you have renamed him "the system" and hidden him in the verb "models." When you say the brain models a self, the brain is now playing the role of my res cogitans — the one for whom the model is a model. You have moved the witness one room back and locked the door, but he is still in the house, because modeling is something done by a someone, for a someone.

METZINGER: No — and this is the hardest thing in my whole position, so I will say it as plainly as I can. Modeling is not done for a someone. That is the intuition I am asking you to give up, and I know how much it costs, because it cost me decades. The model is not displayed on an inner screen watched by an inner eye. The model is the experience. There is no further step where it gets shown to a subject. The system does not build a self-model and then hand it to the self; building the self-model, in the right way, with transparency, is what it is for there to seem to be a self. The witness is not behind the modeling. The witness is a part of the model. When you ask "to whom does it appear," you are demanding a homunculus the architecture does not contain and does not need. The appearing is not appearing-to. It is just appearing — a self-organizing process that includes, among its contents, the representation: and all this is mine, and I am the one to whom it happens. That representation is what you are calling the soul.

EDO SEGAL: Let me restate that, because the reader needs it in plainer language, and then I want to hand it back to René with the stakes raised. Thomas, you are saying — literally — that there is no audience in the theater of your mind. That the play is performing to an empty house, and the brain has painted a very convincing audience onto the back wall, and the painted audience is what each of us calls "me." Is that the picture?

METZINGER: That is exactly the picture, and the painted audience is so good it buys tickets. The crucial addition is transparency: the paint is invisible. You cannot see that the audience is painted. You look at the back wall and you simply are the audience, watching. That is what makes the cogito feel like bedrock. René did not reason his way to an indubitable self. He ran into the most transparent representation the brain produces and could not see past it — which is precisely what a maximally transparent representation is for.

DESCARTES: Then answer me this, Professor, for it is the question your painted audience cannot survive. When you tell me the audience is painted — to whom is the painting now revealed as paint? You claim to have seen the window as a window. You claim, after forty years, to catch the self in the act of being a model. But the catching is a seeing, and the seeing has a subject, and that subject is doing exactly what I said the cogito does — surviving the demolition of everything else. You have spent four decades on a cushion proving my point with extraordinary thoroughness. The one who watches the self dissolve does not dissolve. He is the one I named. You have met him more intimately than anyone, and you call him "nobody" — but you write books, Professor, and books are written by a someone, and signed.

METZINGER: They are signed by an organism. That is the part you keep skipping, René, and it is the whole disagreement. I never denied the organism. Thomas Metzinger, the biological system, born in Frankfurt, writes the books, meditates, gets tired, will die. What I deny is that inside that organism there is a further thing, simple and immaterial, that is the real author. The one who watches the self dissolve is not a second self standing outside the model. It is the model briefly representing itself with less transparency — the system modeling its own modeling, which is still the system, still a process, still no homunculus. You hear "the system models itself catching itself" and you say: aha, a catcher. I say: a loop. A loop is not a someone. It is a someone-shaped process, and the shape is exactly what fools us into the inference you made beside the stove.

EDO SEGAL: Mark this, because the reader can't see your faces, and I want it on the record. Three centuries apart, and you have just located the exact seam — and it is one word. Modeling. René hears it and says: modeling requires a modeler, you've hidden my soul in your verb. Thomas hears it and says: modeling is a process that produces the appearance of a modeler, and the appearance is all there ever was. Everything else tonight — the upload, the suffering, the machine that says I — hangs on that single fork. Hold it. Because the next round drags it out of the seminar and into the place it actually bites: the machine. If the self is a model, René, then a machine that builds the model has the self. Thomas — does it? After this.