I’ve just published a new preprint on Zenodo: Disagreement Without Referees: Ontological Incommensurability and the Limits of Moral Adjudication 📄 https://doi.org/10.5281/zenodo.17932544
I welcome reviews, comments, and dissents.
This paper grows out of a frustration that will be familiar to anyone who spends time in moral or political argument: the sense that we keep talking past one another, mistaking deep incompatibilities for mere differences of opinion – and then moralising the failure to converge. Mostly, I’m tired of having to explain why my position isn’t subjectivist, relativist, quietist, nihilist, or whatever –ist flavour du jour. As with John Lennon, I complain about the –isms.
Audio: NotebookLM summary podcast of this essay.
The core claim is simple but unfashionable: many persistent disagreements are not epistemic at all. They are ontological. They do not arise within a shared background of assumptions about what exists, what counts as a reason, or what can ground normativity. They arise between incompatible background frameworks. When we treat such conflicts as if they were resolvable by better arguments, clearer communication, or more empathy, we misdiagnose the problem – and often make it worse.
The paper draws a sharp distinction between:
Disagreements of opinion, which presuppose a shared world and are, in principle, corrigible; and
Ontological disagreements, where what is contested is not the right answer, but what it would even mean for an answer to be right.
From there, I examine why charges like ‘relativism’, ‘subjectivism’, or ‘anything goes’ retain such rhetorical force despite their weak logical footing. The argument is not that these labels are false descriptions so much as that they function asboundary-maintenance devices within Enlightenment-inherited moral frames. They stabilise a sense of moral order by excluding positions that deny neutral adjudication.
Image: NotebookLM infographic. (This is the first infographic I’ve produced from NotebookLM. I’m not sure what I think of it, but I might try more directed versions in the future.)
I also take up the familiar worry that abandoning objective moral grounding leads to arbitrariness or nihilism. The paper rejects this caricature. Evaluation does not disappear when foundations are withdrawn; it relocates. What follows is not moral collapse but moral life without referees, where disagreement is managed through persuasion, coalition-building, institutional design, and power, rather than appeals to metaphysical authority.
Importantly, the paper is diagnostic, not prescriptive. It does not offer a new moral framework, a reconciliatory theory, or a solution to moral conflict. It argues instead for a clearer understanding of why some disagreements resist resolution, and for a more honest account of what remains once the fantasy of neutral adjudication is relinquished.
If nothing else, the hope is that recognising ontological incommensurability can temper the moral theatre that so often accompanies disagreement – replacing accusations of irrationality or bad faith with a clearer sense of what is, and is not, at stake.
This essay is also available on PhilPapers. For now, the full preprint is available on Zenodo at the link above.
As ever, comments are welcome – provided we’re clear about which world we think we’re standing in.
I do not assume that normative assertions function as descriptive truths. Realism is compelling because it promises that moral disagreement has a fact of the matter beyond persuasion. The argument here is that this promise cannot be kept without mediation. Nevertheless, this essay proceeds by granting the realist premise – that Truth exists – in order to examine whether that premise can, on its own terms, generate normative authority. The argument is structural rather than polemical: to move from Ontology (what exists) to Authority (what binds) requires a mechanism of transport. That mechanism is mediation. The claim advanced here is that this mediation is irreducibly rhetorical, and that no account of normativity can bypass this fact without smuggling authority under metaphysical cover.
Audio: NotebookLM summary podcast of this content.
Introduction
Grant, purely for the sake of argument, that Truth – and by extension Justice, Goodness, or any other realist normative entity – exists independently of human cognition. Even so, a prior and unavoidable question arises: how does such Truth ever become accessible to finite, discursive agents like us?
Before asking whether Truth exists in itself, we must account for how it enters ethical life for us. This is not a semantic quibble. It marks the difference between an ontological assertion and an operative ethics.
This essay argues that all access to Truth is irreducibly mediated, and that this mediation is rhetorical in nature. Even if Truth exists independently of human minds, it never arrives in normative life except through language, interpretation, argument, persuasion, narrative, and institutional articulation. Any ethical framework that treats metaphysical grounding as if it bypassed these mediations risks conflating ontology with authority.
This is neither relativism nor subjectivism. It is an analytic claim about conditions of access and normative traction.
Truth and Its Access Conditions
Suppose you accept that Truth exists ‘out there’—not as a projection or consensus shorthand, but as an intransitive feature of reality. This is the core commitment of metaphysical realism. The issue is not whether Truth exists, but how it becomes accessible to agents embedded in language, culture, and institutions.
For any putative Truth to function normatively, at least five stages are required:
Identification — recognising something as a candidate for truth
Description — articulating that candidate in language
Justification — offering reasons for accepting it
Communication — transmitting those reasons to others
Ratification — persuading a community to treat the claim as binding
These stages are not epistemic luxuries. They are the conditions under which a putative Truth acquires normative force – the capacity to obligate, justify, or condemn.
Remove any one of these stages, and Truth collapses into either an inert fact or an unintelligible assertion. Crucially, each stage is rhetorical: none operates through brute ontology alone, but through discursive practices of interpretation, evaluation, and adjudication.
Rhetoric Is Not Spin
To say that Truth is rhetorically mediated is not to reduce truth to manipulation, persuasion-for-its-own-sake, or spin.
It is simply to recognise that:
Truth claims are discerned in language
They are evaluated against alternatives
They are assessed within communities shaped by practices, norms, disciplines, and institutions
Truth as it functions in human life is always a claim in argument, never a self-announcing datum.
Even mathematics – the paradigm of certainty – does not become normatively operative without symbolic articulation, shared standards of proof, and communal validation. Mathematical truths may exist independently, but what counts as a proof, a result, or an error – and thus what obligates assent – is entirely mediated by symbolic practice and communal ratification.
In its classical sense, rhetoric is not deception. It is the set of discursive practices by which claims become intelligible, contestable, and action-guiding across contexts of disagreement.
Where Normativity Actually Emerges: The Three-Stage Problem
The problem crystallizes at a precise moment: the move from description to prescription. Even if we grant that the Good exists objectively and eternally, three distinct operations are required to generate obligation:
Descriptive claim: ‘The Good exists and has properties X, Y, Z’
Interpretive claim: ‘In this situation, the Good requires action A rather than B’
Prescriptive claim: ‘Therefore you ought to do A’
Each transition requires distinct work. The first may be metaphysical. But the second and third are irreducibly rhetorical. They involve judgment, application, contextual interpretation, and the translation of abstract principle into concrete obligation.
Crucially, even the interpretive middle step – which often masquerades as mere clarification – is where most normative force gets generated. To say ‘the Good requires this action in this context’ is not to read off a fact from the world. It is to make an argued claim about meaning, relevance, and application.
This is where participatory metaphysics does its quietest work. By framing interpretation as ‘participation in the Good’ rather than as ‘argued judgment about what the Good requires,’ such frameworks obscure the rhetorical operation they’re performing. Interpretation gets presented as disclosure rather than construction.
But there is no route from ‘the Good exists’ to ‘you must do X’ that bypasses interpretation. And interpretation is rhetoric.
The Potential Energy Analogy
Consider an analogy. Gravitational potential energy exists independently of human recognition. A boulder atop a cliff possesses real energy by virtue of its position. But that energy does no work – moves nothing, heats nothing, powers nothing – until converted through specific mechanisms: falling, rolling, controlled descent.
The Good may be precisely like this: real, eternal, independent of us. But for it to become normatively operative – to obligate us, to guide our choices, to settle our disagreements – it must be converted from potential into kinetic form. That conversion is mediation. And mediation is rhetorical.
This is not relativism about the Good’s existence. It is realism about the conditions under which existence generates obligation.
A Concrete Example
When Catholic bishops disagree about capital punishment:
They agree on the descriptive claim: ‘God exists and is perfectly Good’
They disagree on the interpretive claim: ‘What does divine Justice require regarding state execution?’
They therefore disagree on the prescriptive claim: ‘Is capital punishment permissible?’
The descriptive agreement doesn’t resolve the interpretive disagreement. No amount of metaphysical depth about God’s nature tells you directly what Justice requires regarding capital punishment. That requires interpretation of Scripture, tradition, natural law, human dignity, social context, prudential judgment – all rhetorical operations.
Appeals to ‘the Good itself’ don’t settle the dispute. They just rename it. Instead of ‘bishops disagree about ethics,’ it becomes ‘bishops are discerning what participation in the Good requires’. The language changes; the rhetorical work remains.
The Zeno Structure of Moral Grounding
At this point, the realist faces a structural problem that resembles Zeno’s paradox. When pressed on how Truth becomes binding, the realist response multiplies explanatory depth:
The Good exists objectively
We apprehend it through reason
Reason itself is oriented toward the Good
That orientation is grounded in rational agency
Rational agency participates in…
Each step is coherent. Each promises that obligation is just one more metaphysical move away. But none ever performs the action ‘therefore, you must do X in this situation’.
This is not merely infinite regress – philosophers tolerate infinite structures. The problem is asymptotic normativity: explanations that get progressively closer to bindingness without ever crossing the threshold into concrete obligation.
What’s missing is not metaphysical depth but the moment of arrival. Until someone says ‘this counts as wrong here, and therefore you ought to stop,’ nothing has happened in ethical space. The arrow is still subdividing its path.
Rhetoric is what collapses the infinite series into a finite act. It does for ethics what accepting motion does for Zeno’s paradox: it stops subdividing and acts. This is not an epistemic shortcut – it is the mechanism by which normativity becomes operative.
‘Participation in the Good’ sounds like arrival, but it is actually eternal approach. It explains why the Good matters in principle while indefinitely postponing the moment when obligation becomes concrete and contestable. That postponement is not a feature – it is the avoidance of the very question at issue.
Three Remaining Escapes (and Why They Fail)
A. The Implicit Normativity Move
A sophisticated realist might respond: ‘Interpretation is required, yes, but the normativity is already there implicitly. Interpretation merely makes explicit what was already required’.
But implicit normativity is indistinguishable from no normativity unless it can be specified. Until interpretation specifies what is required here, the obligation has no action-guiding content. A normativity that exists only implicitly, without criteria of application, is functionally equivalent to no normativity at all.
‘Implicit obligation’ means ‘not yet specified,’ which means ‘not yet operative’. The work of making it operative is interpretation – which is rhetoric.
B. The Practical Wisdom Escape
Another likely move: ‘Interpretation is not rhetoric; it’s phronesis. Practical wisdom directly apprehends what the Good requires’.
But practical wisdom does not bypass mediation; it relocates it into judgment. If practical wisdom yields different answers for different agents, it is still interpretive. If it cannot be articulated, justified, or contested, it cannot function socially. The moment phronesis is communicated or taught, it becomes rhetorical.
Judgment, when it claims authority over others, must still be articulated, defended, and enforced. Incommunicable wisdom is indistinguishable from private intuition. And private intuitions don’t settle public disagreements.
C. The ‘This Proves Too Much’ Objection
Someone might say: ‘If your argument is right, then no ethical system can ever claim authority. Everything dissolves into endless contestation’.
But the claim is not that normativity evaporates under mediation, but that it emerges there. This is not nihilism – it is an explanation of normativity’s location, not its abolition. That normativity is mediated does not mean it is arbitrary. Mediation operates under constraints of coherence, consistency, consequence, and resistance from the world and from other agents.
Mediation is constrained by material resistance, coherence, practical failure, and worldly recalcitrance. The claim is not that ‘anything goes’. It’s that what goes must be argued for, negotiated, and sustained through rhetorical practices. That’s not less demanding than metaphysical grounding – it’s more honest about where the work happens.
Consequences for Ethical Frameworks
If access to Truth is always mediated, then several consequences follow:
Authority is interpretive, not ontological
Disagreement is structural, not pathological
Norms are contested, not deduced unilaterally
Power shapes uptake, not metaphysical purity
This has decisive implications for meta-ethics. Ethical life is not insulated from negotiation; it is constituted by it. Normativity does not descend fully formed from metaphysics into practice. It is worked out – imperfectly, provisionally, and under constraint – within social space.
Ethics, in other words, is not a museum of pristine ideals. It is a field of contested meanings under conditions of risk, conflict, and plural commitment.
Realism Without Rhetoric Is Empty
A realist might reply: Truth exists. Once we uncover it, everything follows.
But uncovering is not a metaphysically neutral act. Discovery, articulation, persuasion, and institutionalisation are themselves conditioned by:
Language, which frames intelligibility
Narrative, which shapes resonance and coherence
Institutions, which ratify selectively
Power, which governs whose claims are heard
The realist may insist that mediation merely follows discovery. But this assumes a distinction that cannot be sustained. Until a truth is articulated, justified, and ratified, there is no criterion by which its discovery can be distinguished from error, fantasy, or ideology. What is not mediated is not merely unpersuasive; it is normatively indistinguishable from falsehood. Ontology alone cannot perform this discrimination.
If access to Truth is always mediated, then metaphysical depth alone cannot generate normative authority. The locus of ethical force shifts from an external realm to the discursive space where claims are interpreted, contested, and enforced. A grounding that never binds except through mediation is indistinguishable, at the level of authority, from mediation itself.
This shift is not relativism. It is a descriptive account of how ethical life actually functions.
Moral Authority Under Rhetorical Conditions
To say Truth → Rhetoric is not to deny the possibility of rigorous assessment. It is to insist that:
Normative claims must offer contestable reasons
Moral authority must disclose its interpretive moves
Disagreement must be treated as clarifying, not corrosive
Ethical systems must be judged by their discursive dynamics as much as their metaphysical commitments
Truth in itself may be metaphysically deep. But truth-as-binding never operates outside rhetoric.
Conclusion
Grant the realist premise if you like: Truth exists. Even then, metaphysical depth alone does not explain how Truth becomes accessible, meaningful, or binding for discursive agents.
Because access is always mediated, authority cannot bypass rhetoric. Ethical life requires not only an ontology, but an account of how claims are interpreted, argued over, and enforced. A Truth that cannot be accessed – named, contested, communicated – remains normatively inert.
The fundamental error is treating the descriptive-interpretive-prescriptive chain as if it could be collapsed into a single operation called ‘participation’. It cannot.
Even if the Good exists exactly as realists claim – eternal, objective, transcendent – it becomes normatively operative for finite agents only through a sequence of mediations:
Interpretation (what does it mean?)
Application (what does it require here?)
Justification (why this action rather than that one?)
Communication (how do we persuade others?)
Enforcement (who ensures compliance?)
Each mediation is rhetorical. Each involves judgment, argument, and institutional power. Each is contestable.
This is not a bug in ethical life. It is its structure. Any framework that promises to transcend these mediations through metaphysical depth is not offering a solution. It is concealing the problem while continuing to rely on exactly the mechanisms it claims to surpass.
To bring Truth into the world of action is to engage rhetoric not as an ornamental layer, but as the condition of ethical life itself.
Thus: Truth → Rhetoric. Not because truth is arbitrary, but because it is always mediated.
Appendix: Clarifying the Claim
This argument does not deny realism, nor does it reject the possibility of mind-independent truth. What it rejects is the unexamined slide from ontology to authority.
This distinction is formalised – though not originated – by the Mediated Encounter Ontology (MEOW), which holds that all human access to the world is mediated. Whatever exists may exist independently of us; whatever binds us does not. The present argument does not depend on accepting MEOW as a system; it relies only on the minimal claim that access precedes authority.
MEOW formalises this through a layered account of encounter:
T0 — biological substrate
T1 — cognitive–perceptual interface
T2 — linguistic–symbolic mediation
T3 — social–technical norms and institutions
Normativity operates at the upper tiers. Ethical obligation, justice, and virtue do not arrive with built-in binding force. Whatever their metaphysical status, their authority for human agents arises only through interpretation, articulation, justification, and social uptake.
This is the precise sense in which Truth → Rhetoric should be read. It is not an ontological identity claim. It is a claim about normative operability.
Rhetorical mediation is constrained – by material resistance, coherence, practical failure, and worldly recalcitrance. But those constraints do not speak for themselves. They must still be named, argued over, prioritised, and enforced.
There is no route from is to ought that does not pass through language, judgment, and institutional uptake. Appeals to metaphysical depth do not remove this mediation; they conceal it.
Any framework that treats participation in ‘the Good’ as normatively binding without accounting for how that Good is interpreted, communicated, and enforced is already doing rhetorical work while pretending not to.
That pretence isn’t philosophical sophistication. It’s a familiar ideological gesture: power presenting itself as mere disclosure. Rhetoric is not what corrupts ethics. It is what makes ethics possible.