​Postmodernism and Radical Constructivism: Differentiation Without Ground

Postmodernism and radical constructivism do not merely extend the nihilistic critique of foundations—they transform the very topology of the differentiating act: from a fixed point to a multiplicity of networks, from truth to relation, from center to play. Here, difference no longer seeks anchoring in truth, essence, or universality; it no longer demands final justification. Difference becomes multiple, fragmentary, operational. Form yields to process, truth to locality, the subject to a point of observation. In this field, guarantees dissolve—but a new intensity of differentiation arises: without center, without endpoint, without telos.

Jacques Derrida’s différance does not lead to meaning—it defers, splits, and disperses it into a sliding chain of traces where meaning never fully arrives. Every sign refers to another sign; every term defers to a trace. The idea of a center from which all else could be differentiated is deconstructed. In place of essence, we find the trace; in place of knowledge, the residual play of difference that cannot be seized. The differentiating is not destroyed, but loses its authority. This is a mode of transparency: difference unsupported by form, but never disappearing.

Jean-François Lyotard, in refusing grand narratives, turns toward a multiplicity of language games. Within each game, meanings, actions, and subjects are differentiated—but no game can claim a universal scale. Epistemological transparency here is achieved through the rejection of the universal: no truth holds the privilege to differentiate. The act of differentiation ceases to be guaranteed by a system and becomes open, localized, situated. Difference does not vanish, but it is never again “one.” Each game holds its internal differentiations, but between games lies a transparent incommensurability: multiplicity without a substratum.

Michel Foucault dismantles the possibility of differentiation from a central position by showing that differentiating practices—diagnosis, normativity, law—do not belong to the subject, but are embedded in historical power structures. Knowledge is sanctioned differentiation within a regime. Yet difference is never permanently fixed: each regime produces its own normality within a complex historical context. In his later work, Foucault moves toward the idea of self-formation: the differentiating begins to reflect on its own differentiation—not as liberation, but as a practice. Not with a claim to truth, but with attention to boundaries.

In How Real is Real?, Paul Watzlawick treats difference as a product of communication, not a reflection of objective reality. His thesis—“we cannot not communicate”—emphasizes that every interaction inevitably produces difference, even if unnoticed. What we take as "reality" is the outcome of communicative acts in which difference is always distorted and embedded in relational networks. Difference, for Watzlawick, is no longer logic but rhetoric; not knowledge, but correlation. Reality emerges as the effect of communication, not as its foundation.

In radical constructivism (Ernst von Glasersfeld, Humberto Maturana, Francisco Varela), differentiation is not a mirror of reality but an internal operation aimed at sustaining the coherence of a system. Life is autopoiesis: the self-production of distinctions that allow a system to remain differentiating. The "world" is not known but emerges as the result of differentiation. Maturana’s notion of structural coupling shows that difference always arises in relation, in coordination, not as reflection of an external object. The subject is not a primary observer but a threshold between systems of differentiation.

This constructivist line—from pragmatic communication to biological autopoiesis—is especially close to our own model. Here, difference ceases to be representation and becomes an internal operation of the system, oriented not toward truth but toward continued distinctness. Constructivism, like the ontology of differentiation, asserts that knowledge does not uncover the world but constructs what can be differentiated—and the differentiating is not an observer but an emergent node within the Game. In this sense, constructivism is one of the most profound philosophies of the differentiating after the disappearance of foundations: it does not fear closure, because differentiation continues within it.

Theodor Adorno introduces a unique twist on dialectics: a negative dialectic in which thought does not seek synthesis or reconciliation of opposites but instead holds onto their irreducibility. His core thesis—that the thing is not identical with the concept—means that thinking must preserve the tension of difference rather than resolve it. For Adorno, this is not merely a method but an ethical and ontological position: a refusal of conceptual violence. Difference does not lead to new form but reveals the incompleteness of all structure. This is close to the meta-level of our ontology, where differentiating consciousness stops searching for final form and learns to sustain irreducibility as truth. Adorno’s “negative dialectic” becomes an ethical act of differentiation—not resolving, not concluding, but remaining sharply attentive to the boundary of its own form.

Roland Barthes contributes the notion of transparent play through his concept of the “death of the author.” In his theory, the text is not the product of the author but a “weaving of differences”, where meaning arises in the act of reading, not in pre-established intention. The author as center of meaning vanishes, and the differentiating (reader) becomes a co-participant in a game where differences unfold without fixation. For Barthes, the text is a space in which difference is not stabilized but opens itself in the endless play of signs. This is transparency: the differentiating acts without center, without closure, without truth—sustaining the openness of differentiation itself.

Postmodernism and constructivism together affirm that difference is not substance, not knowledge, not being—it is movement, play, relation. It arises not from a center but in the space between centers; it cannot be controlled, but it can be held. This process becomes the key to the meta-level in the ontology of differentiation: the differentiating ceases to be a position and becomes a field. Transparency is understood not as emptiness but as the refusal to fixate. The Metagame arises as a transition—from knowledge to attentiveness, from truth to resonance. In this context, the Game is not chaos, not result, but a form of being for the differentiating—one that does not dominate or disappear. It is the ability to hold difference, not for the sake of truth, but for the sake of differentiation itself. This is Potentiality: unexpressed, but sustained.