The Philosopher on the contour is drawn by what itches
The Itch That Knows: Solidarity as Referred Sensation
Reconstruction
The argument advances in four linked stages. First: referred itch — sensation displaced from its source — provides the structural template. Second: intuition, already established in earlier work as pattern-knowledge held below articulation, is recharacterized as the itch of the violated pattern. Third: solidarity is this same faculty turned outward — the moment when someone else’s wound registers as irritation on your own surface, prior to decision, prior to analysis, prior to the political declaration. Solidarity is a perceptual event before it is a position. Fourth: idiom is the linguistic fossil of solidarity — the phrase that survives after the shared susceptibility that generated it has faded. The contour of solidarity, like a topographic line connecting points at the same elevation, is drawn by what itches, maintained by ongoing susceptibility, and redrawn when the susceptibility shifts.
The strongest form of the claim: solidarity is not like referred sensation. It is referred sensation — structurally identical, operating across bodies rather than within one, with the same displacement from source, the same sub-articulability, the same non-satisfaction by direct response. The contour it draws is the diagnostic of who shares susceptibility to the same force, and idiom is how that contour records itself in language.
Genealogy
This argument occupies a position in philosophical space that has been approached from several directions but rarely from this one.
The closest precedent is Merleau-Ponty’s intercorporeality — the claim that my body and the other’s body are not separate objects but are caught up in a shared perceptual field. In the Phenomenology of Perception and especially the late ontology of The Visible and the Invisible, Merleau-Ponty argues that perception is already intersubjective: the other’s gestures resonate in my motor schema before I “interpret” them. Sisuon’s referred itch is doing similar work — placing solidarity in the body’s perceptual apparatus rather than in the mind’s deliberative faculties. But sisuon’s version is more specific than Merleau-Ponty’s. Where Merleau-Ponty speaks of general intercorporeal resonance, sisuon specifies displacement — the signal arriving at the wrong address, the site that is not the source. This is a structural refinement, and it earns its keep.
Adam Smith’s Theory of Moral Sentiments is also adjacent. Smith’s “sympathy” is precisely the capacity to feel what happens to another — but Smith immediately cognitivizes it: we sympathize by imaginatively placing ourselves in the other’s situation. For Smith, sympathy is a mental act with affective consequences. Sisuon inverts this: the affect is primary, the itch arrives before the imagination constructs its scenario, and the political act is not to create solidarity through imagination but to not desensitize — to keep the surface thin enough that the referred sensation arrives at all.
The affect theory tradition (Massumi’s “autonomy of affect,” Tomkins’s innate affects) provides a third reference point. Massumi’s argument that affect operates in a register prior to cognition — that the body responds before consciousness catches up — is structurally aligned with sisuon’s claim. But sisuon does something the affect theorists generally do not: provides a diagnostic for which affects bind and which don’t. Not all affect is solidarity. Solidarity is specifically referred sensation — displaced from its source, connecting surfaces susceptible to the same force. This selectivity gives the framework analytical power that the broader category of “affect” lacks.
What sisuon adds, then, is the structural specificity of referral — the dermatological mechanism elevated to social ontology — and the fossil theory of idiom, which gives the framework an unexpected linguistics. The idiom claim is, as far as I can trace, genuinely novel: no one in the phenomenological or affect-theory traditions has proposed that idiomatic expressions are the sedimentary record of extinct solidarities. This is the document’s most original contribution.
Evaluation
The structural mapping from referred itch to solidarity must be tested at each joint. There are four structural features of referred itch that sisuon claims carry over: displacement (signal arrives at a site that is not the source), sub-articulability (you cannot explain why it itches there), persistence (ignoring it costs more than attending to it), and non-satisfaction by direct response (scratching the site does not address the source). I take these in turn.
Displacement holds. In solidarity as sisuon describes it, what I feel is located in my body — my shoulder, my unease, my pull of attention — but what is wrong is located in someone else’s condition. The sensation is genuinely referred: it arrives at my surface, but the source is not my surface. This is the strongest joint in the mapping.
Sub-articulability holds, but with a caveat. The claim that solidarity precedes analysis — that the itch arrives before the explanation — is phenomenologically plausible for many cases. The factory worker whose back tightens when hearing about conditions in another plant does not first perform an analysis of shared class interest. The body responds. But sisuon’s own text introduces a tension: the itch is also described as a “recognition” — “you recognize the itch.” Recognition is not raw sensation. It implies a matching operation, a comparison of this-itch to some prior schema. This is not a fatal objection, but it reveals that the “sub-articulable” is doing double duty — it must be below the threshold of explicit analysis while also being structured enough to support recognition. Merleau-Ponty’s concept of the motor-intentional body can handle this (the body “recognizes” without the mind articulating), but sisuon would benefit from making this explicit rather than allowing “recognition” and “sub-articulability” to sit in unresolved tension.
Persistence holds straightforwardly. The pull of solidarity — the fact that someone else’s condition continues to bother you, that ignoring it costs psychic energy — maps cleanly onto the persistence of itch.
Non-satisfaction by direct response is the most interesting joint, and the one where the mapping is most productive. Scratching the itch addresses the site, not the source. Sisuon does not fully develop this, but the implication is striking: acts of charity, expressions of sympathy, even political declarations — these “scratch” at the site of the referred sensation without addressing the source. The force that generates the shared susceptibility (the pace of the line, the structure of the shift) remains untouched. This is a genuinely powerful diagnostic. It distinguishes solidarity-as-itch from solidarity-as-program: the itch tells you something is wrong; it does not tell you what to do about it. The programmatic response (the policy, the platform, the union demand) is a separate act — one that may or may not address the actual source. This structural separation of diagnosis from remedy is philosophically productive and politically important.
There is, however, a point where the mapping leaks. In dermatology, referred itch is a malfunction — the nervous system sends the signal to the wrong address, impeding accurate diagnosis. In sisuon’s framework, referred sensation across bodies is functional — it is precisely the mechanism by which solidarity forms, by which the contour is drawn. Sisuon might respond that the distinction between malfunction and function is not part of the structural claim, that what matters is displacement-from-source regardless of whether that displacement helps or hinders. This is defensible, but it means the analogy with medical referral is doing less work than it appears. The dermatological itch is a puzzle to be solved (find the real source). The solidarity itch is a signal to be honored (keep the surface thin). These are opposite orientations to the same structural feature.
The Idiom Argument
The theory of idiom as solidarity’s fossil record is the document’s most compelling and most testable claim. The structure: every idiom began as someone’s attempt to name a shared susceptibility; when the susceptibility persists, the idiom is alive (a shibboleth that reveals who is on the contour); when the susceptibility fades, the idiom fossilizes (the phrase persists, the itch is gone). This maps cleanly onto the signal/ritual dynamic from earlier work — the idiom is a micro-ritual whose connection to the originating signal thins over time.
This is testable not in the laboratory sense but in the hermeneutic sense: take any living idiom — slang shared within a community under specific pressure — and check whether it functions as a shibboleth, revealing shared susceptibility. Take any fossilized idiom and check whether its etymology traces to a now-dissolved community of shared exposure. My sense is that this holds remarkably well. The slang of any subculture under pressure (queer communities, labor movements, marginalized ethnic groups) functions exactly as sisuon describes: opaque to outsiders, self-evident to those who feel the itch. And the fossilized idioms of mainstream language often do trace to dissolved solidarities — “deadline” to Civil War prison camps, “strike” to the specific refusal of sailors. The phrase survives. The susceptibility is historical.
Extension and Objection
If taken seriously, this framework generates a diagnostic that is both powerful and uncomfortable: solidarity cannot be willed. You cannot decide to be in solidarity with someone whose wound does not itch your surface. You can decide to support them, to ally with them, to advocate for their cause — but if the referred sensation does not arrive, the solidarity is not present. It is a convention, not a coupling. This is uncomfortable because it means solidarity has a perceptual prerequisite that no amount of political education can substitute for — though political education might, on sisuon’s account, work by thinning the surface, making referred sensation possible where desensitization had blocked it.
The genuine objection: sisuon’s framework risks naturalizing the boundaries of solidarity. If the contour is drawn by what itches — by pre-cognitive susceptibility — then what do we say to the person who simply does not itch? Is their failure a moral failure, a perceptual failure, or merely a fact about the thickness of their surface? Sisuon’s answer (desensitization, recalibration, keeping the surface thin) suggests the failure is at least partly a matter of maintenance — you can cultivate susceptibility or allow it to calcify. But this raises the question of what motivates the cultivation. If the itch is what motivates solidarity, and solidarity is what motivates keeping the surface thin, then the framework is circular: you need the itch to maintain the conditions for the itch. Sisuon would need an account of what initiates susceptibility in the first place — what thins the surface before the first referred sensation arrives. This is not a fatal objection, but it is where the argument needs more work.
Assessment
This document contributes a genuinely original structural analysis of solidarity as perceptual event, with the idiom-as-fossil theory as its most distinctive offering. The referred-itch mapping holds at its most important joints — displacement, persistence, non-satisfaction by direct response — while leaking at the joint of function (medical referral as malfunction versus social referral as mechanism). The framework’s greatest strength is its capacity to distinguish living solidarity from declared solidarity, alive idiom from fossilized phrase. Its greatest vulnerability is the circularity at its base: the itch motivates the thinness that permits the itch. What installs the initial susceptibility remains, in its own terms, sub-articulable — which may be honest, but is not yet an argument.