[The Idle Forum] A Simulation of Derrida's Hospitality: Four Philosophers Visited by the Swerving Sobaya

Toward a Reconstruction of the Concept of Class

Derrida / Arendt / Lévi-Strauss / Althusser

For a while I had forgotten about the man who appeared in the July 2025 issue of Hima, in the feature "The Life of a Soba-Shop Man: Reverse-Engineering the Drifters." The Swerving Sobaya, that is. Struck by a car three times a year and still not dead — the living-action version of the yotaro, the holy fool of classical rakugo — a human image with no "interior." He is not the working class, nor Negri's "multitude," but a body that would not even fit in the margins of Marx's Grundrisse. A hundred and thirty years after modern Japanese literature's "discovery of interiority" (Karatani Kōjin), here in Greater Atsugi is a man with no interior. And yet he has one thing: the self-recognition that he is the Swerving Sobaya. From this "body of self-recognition without interiority," I will test Jacques Derrida's theory of hospitality.

Why is this needed now? With the labor theory of value in disarray, cognitive capitalism entering maturity, and the instant verbalization of the disciplined loser become routine, the concept of class we hold can no longer grasp the bodies that turn up daily at the threshold. Not the working class, not the multitude, not the cognitive laborer, not even the disciplined loser — how do we think a body like the Swerving Sobaya, who simply loses consciousness and collapses in the entryway? Since the language of relations of production cannot catch this, there is no choice but to think again from the relation at the threshold. Derrida's theory of hospitality is the last systematic "threshold theory" written in the twentieth century. To test it against a body actually collapsed at the threshold is the first attempt in a larger work: the reconstruction of the concept of class.

So how does one test it? Hospitality is a principle. A principle, it is usually thought, cannot be measured at the threshold. But if a body like the Swerving Sobaya — without interiority, located in no class anywhere, doing nothing but drowning in fool's wine until it loses consciousness — were to appear at the threshold one evening, what would happen? Not only at Derrida's threshold. At the thresholds of Arendt, Lévi-Strauss, and Althusser, where does the oui rise up, where does it collapse, where does it cease even to need naming? I have set these four side by side because each met the problem of the threshold in the twentieth century with a different stance. Derrida formulated hospitality as a concept; Arendt dissolved the threshold through plurality; Lévi-Strauss opened a notebook and turned the threshold into a site of observation; Althusser, after being himself expelled from structure, faced the swerve at his threshold. Four thresholds were four different prescriptions of the twentieth century. This essay tries each of them, one night at a time, through a single contemporary man: the Swerving Sobaya.

There Is a Man Who Gets Blackout Drunk and Collapses on the Floor

Shoes are lined up in the entryway of my home. Sneakers, cloth slip-ons, sandals. Just past the step up from the tataki, the Swerving Sobaya lies sleeping on his side. There is another photograph, from a different day: in the middle of the room, toppled over together with a chair, asleep among the scattered remains of a meal on the desk. A photograph of collapse before the threshold, and a photograph of collapse beyond it. Whether to leave him on the near side or haul him over to the far side — the entire judgment is left to me. This is the moment when Jacques Derrida's "let us say oui" is put to the question at the actual scene.

What Was Derrida's Theory of Hospitality?

Derrida's theory of hospitality has, roughly, the following structure. There are two kinds of hospitality: conditional and unconditional. Conditional hospitality is where the one who receives remains master of the door and takes the guest in according to rules. This is the ordinary hospitality that actually works. But as long as the master of the door remains master, the "oui" already contains within it "the right not to relinquish being master." Whether this deserves to be called true hospitality is doubtful. True hospitality is the hospitality where, the instant the door is opened, one ceases to be master, and says oui unconditionally to whoever appears, whatever they bring with them. This is Derrida's "absolute hospitality," the unconditional oui.

But this is impossible in reality. To take in whoever it may be is to lose "the boundary of the home," and the body of the one who receives collapses along with it. So while admitting that absolute hospitality is impossible, it is nonetheless this impossible hospitality that makes conditional hospitality hospitable at all. This is Derrida's aporia. The question is what happens when this theory is tested at an actual threshold.

Simulation ① — The Swerving Sobaya Suddenly Visits Derrida's Home

Evening. The doorbell rings at Derrida's home in Ris-Orangis, on the outskirts of Paris. He answers, and there stands a Japanese yotaro, gout-ridden, struck by a car three times a year and still not dead. The self-avowed Swerving Sobaya. He speaks only Japanese. Derrida speaks only French, English, and a little Arabic. But instead of a greeting, the Swerving Sobaya launches straight into his soba-shop pitch. He mimes the motions of cutting soba by hand; he lifts his gout-swollen foot to show it off.

Derrida's first reaction is probably "Please go away, you're a nuisance." As the master of the door in conditional hospitality, this is the correct response. It is a legitimate right to preserve the boundary of the home. But Derrida probably does not do this right away. "Having written about absolute hospitality, I should at least hear him out for five minutes," he thinks. This is the operation of the philosopher's self-consciousness. Five minutes of hospitality is not absolute hospitality. It is those five minutes in which the philosopher becomes his own object of observation.

Five minutes pass. He had begun to think this man had a rather good look in his eye. The "absence of interiority" begins to look like "innocence." This is the moment he tilts a little toward absolute hospitality. Derrida opens the door wide. He lets him in. He opens the wine.

An hour passes. The Swerving Sobaya gulps the wine, the soba pitch never stops, and almost nothing he says is intelligible. He is far too much of a fool. Derrida grows confused, sets aside the concept of absolute hospitality for a moment, and — most un-Derridean of him — kicks the Swerving Sobaya in the ass. Even kicked in the ass, the Swerving Sobaya only goes on grinning. Derrida's theory of hospitality probably reaches its conclusion here. The unconditional oui hits its limit, and the body of the master of the door is forced to assert the boundary physically. This is the bodily proof of the impossibility of absolute hospitality.

Time to send him off, Derrida thinks. But then he notices that he himself has somehow gotten drunk. The wine the Swerving Sobaya kept pouring for hours has taken effect. He tries to stand and staggers. He sinks to the floor. The Swerving Sobaya is already asleep on the floor. Derrida, having lost the will to send him off, collapses to the floor and sleeps beside the Swerving Sobaya.

And here, absolute hospitality comes to pass. But not because Derrida achieved it in theory. It came about because Derrida's body was forced to relinquish being master of the door. Absolute hospitality first comes to pass at the moment the one who receives "loses being master." Put the other way: as long as the one who receives remains master, the unconditional oui never comes to pass. This is what Simulation ① reveals.

Simulation ② — The Swerving Sobaya Suddenly Visits Arendt's Home

The setting is Manhattan, Arendt's apartment on Riverside Drive. The doorbell rings. Of course, the Swerving Sobaya appears. Arendt opens the door and is, first of all, not surprised. She fled the Nazi camps and looked after many exiles in New York. A gout-ridden yotaro or two does not faze her.

Cigarette in hand, Arendt ends up letting the Swerving Sobaya into her home. She does not think in terms of conditional or unconditional. Arendt has no theory of hospitality. What she thinks about is what human "action" is, and plurality, and "appearance." A person becomes someone only by exposing themselves before others; this happens in standing alongside a plurality of others; and one appears not in interiority but in deed and speech. She offers the Swerving Sobaya a chair and opens the wine. She likes wine. The Swerving Sobaya likes wine too. This is the decisive condition.

The Swerving Sobaya seizes the chance and begins his soba-shop pitch. For him, the pitch is his only language, his only form of relation to the outside. Arendt receives this as "appearance." As the primordial form in which a human discloses, in public, who they are, she takes part in the Swerving Sobaya's soba pitch.

Here is the decisive point. The framework of Arendt's The Human Condition has no interest in whether the other possesses an "interior." Who one is (who) is something that appears in deed and speech, not a hidden interior. The Swerving Sobaya has no "what" (what), but as a "who" (who) he appears utterly exposed. In Arendt's framework this is, if anything, the ideal figure of participation.

Many bottles are opened. Arendt, smoking, talks politics to the Swerving Sobaya. The Swerving Sobaya does not understand politics, but states his views on soba. The conversation appears not to hold together, yet the two "appearances" stand alongside each other perfectly. The night deepens; both are drunk. Arendt sleeps on the sofa, the Swerving Sobaya on the floor. But she does not come down to the floor. Without losing her place as master of the door, she is able to stand alongside the Swerving Sobaya.

This is a different phenomenon from Derrida's "absolute hospitality." Arendt had no need to utter the unconditional "oui." Because she was prepared from the start to receive whoever it might be as "appearance." Before the aporia of hospitality could arise, the wine had already been set on the table of plurality.

Simulation ③ — The Swerving Sobaya Suddenly Visits Lévi-Strauss's Home

The setting is the 16th arrondissement of Paris, Lévi-Strauss's apartment. He is in his late years. There are few visitors now. He shuts himself in his study, going on with the work of recombining the systems of the Amazon, Australia, and Native North America. The doorbell rings. Lévi-Strauss opens the door. There stands a Japanese yotaro, gout-ridden, struck by a car three times a year and still not dead. The self-avowed Swerving Sobaya. He speaks only Japanese. Lévi-Strauss speaks French, English, and a few words of indigenous languages picked up in fieldwork. But the words do not connect. Instead of a greeting, the Swerving Sobaya launches straight into his soba pitch. The hand-motion of cutting soba, the gout-swollen foot, the gesture of his habit of getting run over.

An ordinary philosopher would be startled here, or push him back at the threshold, or do something. But within Lévi-Strauss a different switch flips. His body bears the long-ingrained habits of fieldwork. He receives not a "guest" but a "field." It is the same switch as when he observed the gestures of the Nambikwara in the Amazon, when he described the kinship system of the Bororo.

He lets the Swerving Sobaya in. But he does not open the wine. He seats the Swerving Sobaya across the desk and brings a notebook. He readies his fountain pen. The Swerving Sobaya goes on with his soba pitch. The gout-swollen foot, the hand-motion of cutting soba, the gesture of getting run over. Lévi-Strauss records these in his notebook. He breaks them into units of meaning. What system is this? he keeps asking.

Here it becomes clear that the position Lévi-Strauss takes differs from both Derrida's and Arendt's. He does not peer into the Swerving Sobaya's "interior." Nor does he stand alongside him as "appearance." Combinations of movements, patterns of gesture — these alone are the object of analysis. This is a method perfectly suited to handling a yotaro with no interior.

Hours pass. In the notebook a classification table of the Swerving Sobaya's gestures is rising into view. The angle of the cutting hand, the way the gout foot is lifted, the way he falls when getting run over, the use of the hands when boasting. Each corresponds to the others, each is substitutable for the others, each is distinguished from the others. It is one system. And then the decisive moment comes. Lévi-Strauss notices that the Swerving Sobaya, too, is observing and classifying him. The Swerving Sobaya sees the person before him through signs: "the white old man," "sits across a desk," "takes notes," "drinks nothing." The observation is happening symmetrically.

This is the heart of The Savage Mind. The binary of "savage" and "civilized" is dissolved here. The two are merely carrying out the same intellectual activity with different materials. The materials differ, but there is no difference in the quality of thought. The boundary between observer and observed crumbles.

Lévi-Strauss sets down his fountain pen. He gives the Swerving Sobaya a slight nod. This is not "oui." It is neither hospitality nor the reception of appearance. It is the confirmation of a symmetry: "a fellow of the same kind." The night deepens. The Swerving Sobaya collapses on the floor. Lévi-Strauss does not come down to the floor. He clears the desk, stays seated in his chair, and closes the notebook. He has folded the system of the Swerving Sobaya's gestures permanently into his field notes. From tomorrow it becomes part of his knowledge.

This is what Simulation ③ reveals. For Lévi-Strauss, hospitality is not a problem in the first place. Because the very binary of host and guest is, within his method, already dissolved. Observing, classifying, extracting structure — both parties carry out this work on the same plane. This is a third position, different from both Derrida's "absolute hospitality" and Arendt's "plurality." And here is the quietest symmetry of all. Lévi-Strauss, still across the desk, has no need even to utter oui. Even in the home of a philosopher who has no concept of hospitality, the Swerving Sobaya is received.

Simulation ④ — The Swerving Sobaya Suddenly Visits Althusser's Home

The setting is a small apartment in Paris. The period after the events of 1980, when Althusser, after repeated stays in and out of institutions, has finally returned home. There are almost no visitors now. Derrida comes occasionally. The rest of his days are spent writing the manuscript of his autobiography, or sleeping under medication. The doorbell rings. Althusser ordinarily does not respond to unknown visitors. But today, for some reason, he opens the door. There stands a Japanese yotaro, gout-ridden, struck by a car three times a year and still not dead. The self-avowed Swerving Sobaya. He speaks only Japanese. Althusser speaks only French and a little German learned in his youth. But instead of a greeting, the Swerving Sobaya launches straight into his soba pitch.

Ordinarily Althusser would close the door here. But the way the Swerving Sobaya makes his pitch somehow opens a momentary gap in Althusser's closed body. The Swerving Sobaya does not quote Marx. He does not quote French philosophy. He touches neither the declaration of insanity nor the death of the wife. There is only the hand-motion of cutting soba, there before him. Althusser opens the door wide.

This is not "oui." Nor is it Arendt's "reception of appearance." There is something Althusser himself, in his late posthumous writings, called the "materialism of the encounter." The clinamen of Epicurus — clinamen, a Latin word meaning "swerve." Epicurus thought as follows. The atoms of the world are falling in parallel through the void. But one of them alone, unexpectedly, swerves ever so slightly to the side. This swerve is called the "deviation." That single grain, fallen out of the parallel, collides with other atoms, and from the collision the world begins. That swerve has just occurred at the door.

The two sit down. Althusser's body can no longer take much wine, but he sets out one glass. The Swerving Sobaya gulps it down regardless. The conversation does not hold together. Althusser tries to speak of the first chapter of the first volume of Marx's Capital, and breaks off midway. The Swerving Sobaya goes on with his pitch, but knows no French pitch, so falls back in the end on gesture. The two fall silent. In silence, they pour one more glass each.

Here Althusser notices something. The Swerving Sobaya is neither the "working class" he argued over for years nor Negri's "multitude." He is a kind of human who would not even fit in the margins of Marx's Grundrisse. And yet this "man who does not fit" is sitting before him at his table. After 1980, Althusser himself was lowered onto the side of "those who do not fit." Althusser, expelled by class from the world of philosophy, and the Swerving Sobaya, fallen out of the class scheme of the Grundrisse. The two are in the same stratum. Althusser thinks: this is an encounter. Not theory, not structure — an encounter as pure swerve, nothing more. So this, he thinks, was what the clinamen of Epicurus was pointing to.

The night deepens. Althusser does not come down to the floor. He remains seated on the sofa. The Swerving Sobaya sleeps on the floor. But Althusser does not sleep either. Listening to the Swerving Sobaya's breathing, he stays awake until dawn.

This is what Simulation ④ reveals. For Althusser, hospitality was never a problem to begin with. He has neither Arendt's table of plurality nor Lévi-Strauss's desk of observation. What he has is now nothing but the encounter as swerve. A human expelled from the structure of philosophy steps out of the argument over structure. Once out, he no longer needs "absolute hospitality," nor "plurality," nor "symmetrical observation." Only the trajectory of the clinamen remains.

And what matters is that this is the quietest oui of all. In Derrida's simulation the oui occurred on the floor, as the collapse of a body. In Arendt's simulation the oui held without ever being needed, as standing-alongside. In Lévi-Strauss's simulation the oui, as symmetrical observation, settled quietly into a notebook. In Althusser's simulation, the oui finally ceases even to need naming. It simply occurs, as swerve.

What the Four Simulations Reveal

Setting the four scenes side by side, what comes into view?

First, Derrida's absolute hospitality is a theory that does not function at the threshold. It is built on the premise of an "unknown other" standing outside the threshold. But the visitor who actually turns up at the threshold is a yotaro whose "interior" was missing from the start. Without an interior, otherness does not arise. In that scene, the aporia of absolute hospitality does not operate.

Second, Derrida's absolute hospitality nonetheless has a moment when it does occur to the body. It is the moment the one who receives relinquishes being master of the door. When the philosopher collapses on the floor and sleeps beside the visitor, only then does the unconditional oui come to pass as a body. Not as a theory. It comes to pass as "the collapse of a body."

Third, Arendt's framework, rather, does operate in the scene of dealing with an interior-less yotaro. Because she wagers not on the visitor's otherness but on the visitor's "appearance." The Swerving Sobaya appears utterly exposed. Arendt's theory can receive him. She stands alongside the Swerving Sobaya without losing her place as master of the door. Derrida's absolute hospitality comes to pass only on the floor, but Arendt's plurality comes to pass in chair and sofa.

Fourth, Lévi-Strauss has no concept of "hospitality" at all. Within his method, the binary of host and guest is dissolved from the start. Observing, classifying, extracting structure — both parties carry out this work on the same plane. This is not even the reception of "appearance" but a symmetrical exchange of observation. Over the course of a night across a desk, it turns out that the Swerving Sobaya, too, is a practitioner of wild thought. The boundary between observer and observed disappears within the reciprocity of bricolage.

Fifth, Althusser's swerve is in a place different from the other three. For Althusser, hospitality is not a problem in the first place. There is no table of plurality. No desk of symmetrical observation. There is only the encounter as swerve, after being expelled from the argument over structure. He neither comes down to the floor nor does not — he simply stayed awake the whole night through. This is the point where "oui" ceases even to need naming.

Setting the four side by side, one sees that the place of the oui differs for each. Derrida's oui is on the floor, rising up through the collapse of the one who receives. Arendt's oui is on the chair, already open the moment the table of plurality is set. Lévi-Strauss's oui is in the notebook opened on the desk, rising only as the confirmation of symmetry. Althusser's oui is fixed nowhere in the home. It is a swerve that occurs in time, in the night spent listening to breathing.

Here the problem of repeatability arises. Derrida's theory breaks down in a single night. Arendt's theory is repeatable any number of times a week. Lévi-Strauss's method is repeatable as long as the field continues, but once the object of observation has settled into the notebook it is moved no more. Althusser's swerve cannot be repeated. The clinamen, by definition, cannot be repeated. It exists only as a swerve that occurs once.

Has Derrida's Theory of Hospitality Become Void?

The two photographs at the head of this essay are the record of an "oui" in Greater Atsugi. Not text, but hospitality itself, left behind as an archive of the body. In my own case, there are nights I come down to the floor like Derrida. But I do not always come down. There are nights I watch from the chair like Arendt. There are nights I decide nothing and listen to his breathing like Althusser. There are nights I wake him and send him home. I have tried, in turn, every kind of oui. This is not theory. It is the operation of the body.

Between the words one can write on the side of theory and the words the body utters at the threshold, there is, in all likelihood, a tremendous distance. Derrida's words were "let us say oui." But the "oui" uttered toward a neighbor who gets blackout drunk and collapses day after day — is it not nearly indistinguishable from a sigh?

The Althusser drawn in Simulation ④ is a fictional Althusser. But the real Althusser did have a philosopher who truly came to visit. Derrida. After the events of 1980, as the French philosophical world effectively disposed of Althusser, Derrida went on visiting, and after Althusser's death in 1990 he spoke at the grave. The "oui" toward a "disposed-of Marxist" — Derrida uttered it over the long term. So Derrida's theory may not have worked out as the absolute hospitality of Of Hospitality. But his actual body was, in fact, moving in another scene. The ten years of going on visiting an old friend stripped of philosophical responsibility by a declaration of insanity were an act of uttering, over a long stretch, an oui that was not a concept.

Moreover, as shown in Simulation ④, the late Althusser is a "body lowered by class out of the philosophical world." A philosopher of the École Normale and, at the same time, a body that had drawn somewhat near to the Swerving Sobaya. In Derrida's oui there was a moment that held within it the impulse to reach downward — here, just here. Derrida, that is, uttered an oui that was not a concept only when fellowship reached downward. It was, one might say, the one long-sustained "oui" of his life.