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1. Destruction of Essentialism
1.1. Genealogy of essentialism: from Plato to the object-cosmos
The Western tradition stretching from Plato to Aristotle and thence to medieval Scholasticism progressively crystallised a specific manner of questioning the multiple and the transitory. This was not Plato's invention, the fixation on stability and unity is earlier, but it is in Plato that it gains articulated form, and in Aristotle that it becomes a binding doctrine for two millennia of European thought.
In Plato, the problem is posed thus: the sensible world presents multiplicity and change, there are many horses, many instances of beauty, many just acts, and each of them comes to be, changes, and perishes. Yet the mind can comprehend what a horse is in general, beauty in itself, justice as such. Therefore, there must exist a level of reality where these simple, eternal, immutable unities reside. Platonic Forms are not mere concepts or practical generalisations extracted by the mind from particulars: they are subsistent realities prior to particulars, which the latter imitate or participate in. Sensible multiplicity is ephemeral; intelligible unity is eternal. Yet precisely here lies the first sign of instability. The very argument establishing the Forms generates a problem identified by Plato himself, the so-called "third man" argument. If a particular horse participates in the Form Horse, and if participation requires resemblance (since the particular must resemble the Form to participate in it), then this resemblance is itself a characteristic common to the particular and the Form. Consequently, there must exist a second Form, Resemblance, participated in by both. If this pattern repeats indefinitely, a single, stable foundation is never attained. Essentialist doctrine reveals itself as internally fractured from its origin: the strategy of grounding multiplicity in a simple unity proves, when examined rigorously, incapable of closing its own discourse.
Aristotle reformulates the problem. He rejects Platonic dualism, Forms are not separated from the sensible world, and integrates form into individual matter. The particular (the concrete horse seen in the field) is a composite of matter and form (hylomorphism). Form is what renders matter intelligible, that which makes it be what it is. But this means form becomes the cause of identity: matter, in itself, possesses no determination. Matter is passive potency, pure capacity to receive form. Form is that which grants matter the capacity for existence. This model entails precise cosmological consequences. Aristotle's De Caelo describes a finite, spherical universe hierarchised into concentric spheres, with a fundamental distinction between the sublunar world (where elements change: earth, water, air, fire) and the supralunar world (where the quintessence or ether reigns, incorruptible and immutable). This structure is not contingent, it is not the outcome of particular material relations that could be otherwise. It is the expression of a formal necessity: each element seeks its natural place in the cosmos; each sphere has its prescribed function. The true form of the universe is this hierarchy, this order wherein each thing occupies its site according to its substantial nature.
The cost of this doctrine is invisible yet decisive: matter possesses no form of its own, no capacity for self-organisation. All form arrives from without; all determination is the imposition of an essence upon a passive substrate. The richness of motion in the material world is consequently reduced: change is a mere displacement of potencies into act according to pre-established forms. The novel is impossible; there is only a rearrangement of what was already inscribed in nature.
Medieval Scholasticism incorporated this hylomorphic logic and applied it on a cosmic scale. Every being possesses an essence, that which answers the question "what is it?", and this essence is distinct from existence (in Thomas Aquinas, existence is added to essence as grace and contingency, yet essence remains the stable core, the form that does not vary). God is the sole being in whom essence and existence coincide; everything else is composite, hence derivative and contingent, yet ordered according to a plan of essences. The universe is a cosmos because it is intelligible: because forms are predestined, organised, and inscribed within a divine intellect that contemplates them prior to creation.
The modern dissolution of this edifice is frequently narrated as the discovery that things possess their own motion and intrinsic dynamics, and this is true. However, the narrative omits a crucial point: modern science did not abandon essentialism; it displaced it. Descartes rejects Aristotelian substantial forms, natural places, and occult qualities. Matter is homogeneous, inert, governed by mechanisms, collisions, local movements, mathematical laws. Yet these laws are eternal. Cartesian mechanism replaces Aristotelian forms with a new type of form: immutable laws governing inert matter from without. Matter remains a passive receptacle; only the mode of determination has changed. Newton pushes this scheme to its extreme: absolute space, absolute time, the three laws of motion, all of these constitute form that persists, necessary and independent of any particular material configuration. Newtonian dynamics describes the universe as a machine whose fundamental structures are immutable.
Nineteenth-century thermodynamics introduces entropy, asymmetric time, and irreversibility, real change appears to emerge. Nevertheless, the essentialist interpretation persists: the "laws of thermodynamics" are eternal forms governing how energy dissipates. The second principle is proclaimed as a fundamental law of the universe, a necessary truth regarding how things must behave. A clear migration occurs here: when substantial forms are abandoned, when natural places vanish, when hylomorphism collapses, essentialism migrates into new territory, laws, constants, and principles. These acquire the status previously held by Aristotelian essences: they are prior, necessary, and transcendent with respect to the material flux.
Twentieth-century cosmology inherits this structure and reproduces it. General relativity shows that space and time are not an inert container but a relational dynamic, representing the first genuine breach in essentialism. Yet quantum mechanics, in many of its interpretations, reintroduces essential form under a new guise: the "quantum state" as fundamental reality, the wave function as a complete description, and the probabilities governing collapse as eternal laws of nature. And when contemporary cosmology postulates a "ground state" of the quantum vacuum, that point before which nothing existed, where the essential structure of the universe reposes, it reproduces, without acknowledging it, the very strategy used by Aristotle: seeking a level of reality where form ceases to be contingent and becomes necessary, where change halts.
What this trajectory reveals is that essentialism is not a specific thesis regarding which types of forms exist (Aristotelian substances, Cartesian laws, quantum states), but a structural operation: constantly searching, beyond the multiple and the transitory, for a level of reality where form is one, eternal, and immutable, that which "truly is", as opposed to that which changes and perishes. Essentialism is the expectation that there exists a final plane where intelligibility ceases to be a relation with the multiple and becomes the apprehension of something simple and necessary. This plane is never reached because it does not exist. Contemporary scientific inquiry remains structurally oriented by this expectation. The promise of a "theory of everything" is the promise to collect, at last, the ultimate form of the universe, that form which does not recede because it does not exist.
1.2. Form as configuration: emergence, relationism, processuality
If form is not essence, observable forms must be conceived as transitory configurations of material relations in motion. This implies three solidary traits: form emerges, form is relational, and form is processual.
The most evident examples lie in astronomical structures. Consider the spiral form of a galaxy. When observing a spiral, the arms appearing to wind around the core, there is a natural tendency to ask: "is this a form that persists and moves together?" The answer is no. Spiral arms are density patterns, defined by the density wave theory of Lin and Shu in the 1960s: they are regions where the concentration of matter is slightly higher. But matter does not move in the arms. Stars enter the arms from one side, decelerate (because density is higher and gravity more intense), then accelerate again and exit on the other side. The spiral form is a density wave, a pattern persisting while differential rotation continues (the core rotates faster than the outer discs), yet entirely composed of matter in continuous passage. Form is not a moving object; it is a relational conformity maintained because dynamic conditions persist. Were differential rotation to cease, the density wave would vanish. Form is entirely dependent upon the relational processuality that produces it.
This example generalises. Take stellar equilibrium. A star possesses an approximately spherical form, an incontestable observational fact. However, this form is not an intrinsic property of stellar matter; it is not the "nature" of the matter composing the star. The spherical form is the result of two forces in continuous tension: gravity (pulling matter toward the centre, attempting to compress the star) and radiation pressure (originating from nuclear reactions in the core, pushing matter outward). As long as these two forces balance, the form remains approximately spherical. Yet the equilibrium is dynamic and unstable. As matter is consumed (nuclear fuel is finite), core temperature and pressure conditions alter. Radiation pressure decreases. Gravity begins to dominate. The star contracts, changing form. If contraction is accompanied by a temperature rise (under specific conditions), helium fusion ignites and pressure surges again, but now so intensely that the star expands. Form changes once more: the star becomes a red giant, a configuration completely different from the initial sphere. Later, if mass is appropriate, contraction continues and form shifts again: a white dwarf, an extremely dense and compact configuration. Or, if mass is sufficiently large, complete collapse into a black hole occurs, where the very notion of "form", of boundary or surface, loses meaning. Form is not a property possessed by an object; it is the effect of relations governing how matter reorganises. When relations change, form changes.
This is radically different from the Aristotelian notion of form. For Aristotle, form is what makes a thing what it is, prior, essential, determinant. For the perspective developed here, form is posterior to relations; it is a consequence, an effect. Matter is not a "passive receptacle" awaiting form from without; matter is that which relationally reorganises, and form is the pattern that this reorganisation assumes at each moment.
Simondon offers a crucial mediation here, although the framework developed here goes beyond his formulation. Simondon rejects Aristotelian hylomorphism, the notion of form and matter as two distinct realities that meet. He proposes, as an alternative, that individuation (the process by which a unit emerges) is always the resolution of energetic disparity resolving an initial metastability. Form is not an external pattern imposed from without; it is the crystallisation of tensions existing within the system. This is very close to what is described here: form is the emergence of relations. However, Simondon works with the pair form/information (information being the disparity permitting the resolution of metastability), whereas here the framework differs. Here, one operates with material tensions, gravity, pressure, concentration differences, energetic gradients, without invoking any informational terms. Form does not resolve a tension in a final sense; form is the mode in which tension manifests in each configuration. Simondon speaks of a "pre-individual", a reservoir of potentials that individuation never exhausts, persisting beyond any constituted form and permitting future individuations. Here, one speaks similarly of material excess: processes and energies persisting beyond any configuration that emerges. Yet not as "potential" in the sense of a capacity to be or a possibility of act (as in Aristotle); rather as effective materiality that is not entirely captured or consumed by the form it momentarily assumes. Form is that which material excess leaves visible, leaves legible, at each point of its processuality. Excess never ceases; hence form is never repose.
Prigogine provides a decisive complement from the thermodynamics of systems far from equilibrium. Dissipative structures, configurations remaining stable only while the flux of energy sustaining them persists, demonstrate that form is sustained by instability, not despite it. A vortex in a water current maintains its configuration while the flow persists; when the flow ceases, the form dissolves. The divergence from Prigogine is, however, precise: dissipative structures require an external flow, they are open systems maintaining organisation by importing energy. The argument here is more radical: the instability sustaining form is immanent to the material real; it does not depend on an "exterior" supplying a flux. Cosmic form is a transitory configuration sustained by immanent excess, not by dissipation dependent upon external flow.
1.3. Cosmic forms as transitory equilibria
Whether a form emerges, and when, depends entirely upon specific material conditions. This does not mean that form is arbitrary or indeterminate; it means it is contingent, it might not emerge if conditions were otherwise. Several examples illustrate this principle.
Consider star formation from molecular clouds. A molecular cloud is an accumulation of gas (principally hydrogen) and dust distributed more or less homogeneously in intergalactic space. Gravity acts upon the entire mass, a universal force. However, gravity alone is insufficient to collapse the cloud. Thermal pressure (the kinetic energy of particles) resists contraction. The cloud remains relatively stable as long as the equilibrium between gravity and pressure is maintained. Yet a critical threshold exists, the Jeans mass, above which gravitational contraction dominates thermal pressure. If a region of the cloud contains a mass greater than this threshold (which depends on the temperature and density of the cloud), that region collapses. Form does not exist beforehand: there is no "star" hidden in the cloud waiting to reveal itself. Form emerges when mass crosses a specific threshold, when the relation between forces alters. As collapse proceeds, density rises, temperature surges, pressure increases, and nuclear reactions ultimately ignite. A new form emerges: the star. This form was not necessary, other clouds may lack sufficient mass, or may be dispersed by radiation shocks prior to collapse, or may fragment into multiple smaller regions. Form emerges or fails to emerge according to the contingency of conditions.
Once a star exists, a new instability defines its subsequent fate. The Chandrasekhar limit is an extraordinary fact: above a certain mass (approximately 1.4 solar masses), electron degeneracy pressure, the pressure resulting from the fact that electrons cannot occupy the same quantum state (the Pauli exclusion principle), is insufficient to sustain the star against gravity. A white dwarf (the form a star assumes after consuming its nuclear fuel) can exist only below this threshold. Above it, contraction continues indefinitely, either until neutron degeneracy pressure takes over (in neutron stars), or until complete collapse into a black hole occurs. The form a star finally assumes is not determined by some hidden "nature" of matter, but by a figure, the ratio between initial mass and the Chandrasekhar limit. It is pure relational contingency: a star of 1.3 solar masses will become a white dwarf; one of 1.5 will become a neutron star. The difference is small, yet the final form is radically distinct.
Galactic mergers offer an equally convincing example. Two spiral galaxies approach one another, this occurs because nothing in the universe is truly isolated; galaxies have velocities, and galactic clusters exert mutual gravitational attraction. As the first galaxy passes through the gravitational field of the second, gravitational tides distort both. Spiral forms disintegrate. Stellar orbits are altered. The interaction is violent and chaotic. In time, the dynamics stabilise. The two masses coalesce. The form that emerges is completely different: an elliptical galaxy devoid of spiral arms, where light distribution is roughly symmetrical and three-dimensional. The spiral form is not the "true form" of a galaxy that later becomes corrupt; both are contingent forms emerging from specific material relations. The spiral emerges and persists while the thin disc and differential rotation are maintained. The elliptical emerges when two rotating structures collide and their orbits entangle. What is the "true form" of a galaxy? Neither is true in a privileged sense; both are real according to the conditions producing them.
The same occurs at molecular and crystalline levels. Water can exist in multiple crystalline forms (ice allotropy): hexagonal ice, cubic ice, amorphous ice, and further exotic forms under extreme pressure. Each form corresponds to a different arrangement of water molecules, a distinct geometric pattern of hydrogen and oxygen bonds. Form depends entirely on temperature and pressure. At atmospheric pressure and temperatures below 0 °C, the hexagonal form is stable. Yet under extreme pressure, molecules reorganise, and a completely different form emerges. Iron provides an even more dramatic example: at room temperature, iron exhibits a body-centred cubic structure; when heated above 912 °C, its structure shifts to face-centred cubic; above 1394 °C, it returns to body-centred cubic; above 1538 °C, it becomes liquid. Each crystalline form possesses distinct properties, hardness, electrical conductivity, and magnetic response vary radically according to atomic configuration. The form of iron is not the "nature" of iron; it is the contingency of thermodynamic conditions. Alter the temperature, and the form alters. Alter the form (by rapidly cooling certain steels, for instance), and properties alter. Form is that which results from specific material processes; it is never repose or essence.
All these examples converge: form emerges when material conditions reach specific thresholds. Form persists while those conditions obtain. Form transmutes when conditions change. There exists no privileged form that is "true" or "essential"; all forms are transitory, dependent upon relations that continue to process. The universe possesses no essential form because there is no plane where relations cease. Material processuality is constitutive; it is not an aspect that could be removed if one managed to access it "adequately". The universe, therefore, is not an object with a form that could be collected and completely described. It is continuous motion from which forms emerge, transitorily visible for as long as the relations producing them endure.
1.4. Transition
What emerges from this analysis is a proposition dissolving the foundation upon which all essentialist metaphysics reposed: no form is permanently guaranteed. Every form, however stable it may appear, carries within itself the potential for transformation. Stability is not a fundamental property of the real; it is an exceptional regime persisting only while the tensions that produced it remain in a particular configuration.
This does not mean the real is chaos or indeterminate flux. Forms are real, conformities are real, equilibria are real. But their reality is not that of immutable essences; it is that of material processes whose persistence depends entirely upon the continuation of dynamics that no form can absolutely control. A spiral galaxy is as real while it exists as anything claiming eternal essence. Yet its reality does not guarantee its permanence. It is precisely this unpromising character, this absence of guarantee, that allows the universe to continue reorganising, preserving the real from all rigidity that essentialism ever sought to impose upon it.
The consequence opening for the subsequent chapters is radical: if no form is essence, then the universe cannot be an "object" with intrinsic properties defining it. And if the universe is not an object, then the question "what is the origin of the universe?" proves malformed, because "origin" is likewise not an essential form, but a transformation between conformities.
Transition Aphorism: The stellar form does not await permission in iron to collapse; it is iron that reveals how provisional form was.
2. Universal Instability
2.1. From metastability to constitutive instability
The Western philosophical tradition privileged being over becoming. From Parmenides to Plato, from Aristotle to Scholasticism, the fundamental question was: what remains? What subsists beyond apparent changes? The answer was unanimous, though diversified in its formulations. Being is stable, eternal, self-sufficient. Becoming is accident, shadow, illusion. Until late modernity, the theory of knowledge operated on the conviction that change was a sign of ontological imperfection.
Contemporary science reopened the question by inverting the terms. It no longer asks "why do things change?" as if change were an exception requiring explanation. It asks: "why do they appear stable?", and the answer reveals that stability is always conditional, always provisional, always an extraordinarily fragile balance sustained against its own dissolution.
To think this inversion without returning to the indeterminate becoming of the Greek tradition, a concept is required that retains the difference between pure chaos and determined change. Gilbert Simondon supplied this concept: metastability. A metastable system is not in equilibrium, in equilibrium, a system rests and no transformation occurs. Nor is it unstable in the ordinary sense, it does not collapse in any direction at the slightest perturbation. A metastable system is one charged with potentials, suspended in a configuration retaining energies and tensions without dissipating them. It is "more than unity and more than identity", says Simondon, because its present identity already contains germs of other possible identities.
The classic example is a supersaturated sugar solution: it remains liquid and homogeneous, yet a seed crystal or a simple vibration triggers crystallisation. The solution did not "know" it would become a crystal, the information was not inscribed. But the potential was there: the material difference between the present state and the crystalline state constituted an unresolved tension. Metastability names precisely this condition: the system realises one configuration among many possible, without guarantee that the present one is the most stable or definitive.
Ilya Prigogine developed this thought through the theory of dissipative structures and bifurcations. Far from equilibrium, when a flux of energy passes through an open system (such as a convective cell in a heated fluid, or an oscillating chemical reaction), the system approaches a bifurcation point. At this point, the dynamic trajectory splits: the system can evolve toward attractor A or attractor B. The bifurcation is, in principle, indeterminate, the smallest fluctuation can decide the path. Yet once a branch is chosen, the system consolidates in that state. History matters: the bifurcation is not repeatable. Contingency is radical, irreducible to prior determination.
What Simondon and Prigogine permit is the radicalisation of a thesis: metastability is not a property of special systems. It is not an occasional regime in which certain systems find themselves by misfortune. It is the constitutive condition of the material real. Every particular configuration, and this is central, realises an arrangement among unexhausted potentials. The apparent stability of a rock, an atom, or a star is the result of material constraints retaining certain possible transformations within a horizon of duration long enough to appear fixed. However, "long enough" is always relative. Uranium appears eternal to the human gaze (half-life of 4.5 billion years); to the gaze of the universe, it is ephemeral.
The consequence is simple and radical: the question "why do things change?" is a bad question. The correct question is "why do they appear stable?", and the answer is: because the material constraints sustaining them have not yet been breached. Instability is not an exception that theory must repair. It is the universal regime of which stability is a particular, conditioned, contingent case.
Genealogy of being and becoming
The distinction between being and becoming structures Western metaphysics from the Pre-Socratics onward. Parmenides established the foundation: being is immutable, eternal, indivisible; non-being is not and cannot be thought. From this position an ineluctable consequence follows, if being is, any change would be a passage from being to non-being or from non-being to being, both impossible. Change, therefore, is an illusion of the senses. This framework persisted through medieval Scholasticism, which identified being with substance, the form remaining identical to itself through variable accidents. Substance is eternal, incorruptible, the core of permanence in a world of alterations.
The modern inversion of this genealogy was not philosophical but physical. Carnot and Clausius founded thermodynamics by demonstrating that every irreversible transformation implies an increase in entropy: energy is neither created nor destroyed, but reorganises in a single direction, from ordered to disordered, from concentrated to dispersed. This is no metaphor: it is a measurable property of the material real. Boltzmann subsequently showed that this temporal asymmetry emerges from statistical considerations regarding particles in chaotic motion. When enormously many particles move, the probability of remaining spontaneously organised decreases exponentially with time. Order is the exception; disorder is the rule. Quantum mechanics arrived to complete this reconfiguration: indetermination is constitutive, not a defect of knowledge. A particle possesses no definite trajectory prior to measurement; it exists in a state of superposition. The material real is, from its most fundamental level, devoid of fixed determination.
In this context of thermodynamic and quantum irruption, Simondon offers an intermediate path between Parmenidean repose and Heraclitean chaos, metastability. A metastable system is one that can conserve a state indefinitely if unperturbed, yet contains potential for transformation if a minor variation triggers it. The classic example is a saturated solution, a solution of sugar in hot water can remain clear even when cooled below the normal precipitation point. Only a seed crystal or a vibration induces irreversible crystallisation. The system is charged with unresolved potentiality. Simondon describes metastability as "more than unity and more than identity", the system is multiple, containing unreconciled forces subsisting in the same.
The distinction required here is precise: Simondon thinks metastability as a relation between form and information, wherein form is always susceptible to receiving new information, new contours of actualisation. In this pre-symbolic cosmic context, metastability is the occupation of the real by unresolved material tensions, by conformities not exhausted in a single configuration. Simondon's "pre-individual" is an ontological reservoir of potentials; here it is simply material excess overflowing the boundaries of present form, resisting closure. A particle is not determined; a star is not stable; a field configuration is not repose. The real is intrinsically multiplicity coiled within each present.
Prigogine develops this intuition by showing how systems far from thermodynamic equilibrium produce ordered structures not despite irreversibility, but because of it. In a system at equilibrium, molecules distribute randomly, maximum entropy, no macroscopic order. When, however, energy flows continuously through the system far from equilibrium, organisation emerges. A Bénard cell, a fluid contained between two plates heated from below, remains at rest up to a critical temperature. Once that temperature is crossed, the fluid spontaneously organises into convection rolls, visible geometric patterns, macroscopic order in the midst of molecular chaos. The Belousov-Zhabotinsky reaction produces rhythmic chemical oscillations, periodically varying colours, temporal structure in a system without a law determining it a priori.
The differentiation required: Prigogine analyses dissipative structures in open systems, where entropy exits outward while energy enters. The cosmos, however, is not an open system, there is no exterior into which entropy may dissipate. Instability is here immanent, constitutive of the very material texture, not sustained by an external flux passing through. When Prigogine speaks of "cosmic creativity", he refers to the production of order through irreversibility; in this context, that same irreversibility is rooted in the fundamental structure of the material real, not in an energy applied to it from without. The consequence is disturbing: every form is provisional because the matter constituting it is metastable, charged with potential, capable of reorganisation when that potential actualises. Stability is not a property of the real; it is a rare exception, a state resting upon contained tensions, wearing away over time.
2.2. Instability across all scales
If instability is constitutive, it must manifest across all scales of matter. Not as an isolated accident, but as a universal property. This can be demonstrated by beginning with the smallest and ascending to the entire cosmos.
At the quantum scale, the "vacuum" itself, the state of minimum energy, reveals itself as unstable. Vacuum fluctuations, predicted by quantum theory and confirmed experimentally, show that not even "nothing" is repose. Particle-antiparticle pairs are born and annihilate within infinitesimal time intervals, in accordance with the uncertainty principle. The Casimir effect, the attraction between two conducting plates in a vacuum, demonstrates that these fluctuations exert measurable pressure. The Lamb shift, the minute difference between energy levels in hydrogen, arises from interaction with electromagnetic field fluctuations. The "vacuum" is not inertia. It is a ferment of ephemeral reorganisations.
At the atomic scale, radioactivity reveals nuclear metastability. Uranium-238 decays with a half-life of 4.5 billion years, stable on a human scale, yet condemned. Carbon-14 decays in 5,730 years, perceptible to the archaeological gaze. Polonium-210 decays in 138 days, manifestly unstable to the biochemical gaze. Theoretically, Grand Unified Theories (GUTs) predict that even the proton decays, with an estimated half-life of \(10^{34}\) years, a span so vast it exceeds the current age of the universe by unimaginable factors. Yet if the proton decays, then all ordinary matter, all apparent stability of macroscopic structures, rests upon a cosmic metastability. The entire universe would be, in this reading, a system in slow decomposition, not through imperfection, but by constitution.
At the stellar scale, instability is visible and dramatic. A star like the Sun is in hydrodynamic equilibrium, nuclear fusion pressure in the core balances compressing gravity. This equilibrium is precarious. Fusion occurs in cascades: hydrogen fuses into helium; helium into carbon and oxygen; carbon into neon; oxygen into silicon; silicon into iron. At each stage, the core contracts and heats. However, iron is the thermochemical Maginot line. Iron fusion does not release energy; it consumes it. When a massive star exhausts its hydrogen, fusion slows. The iron core accumulates. Then, in fractions of a second, the core collapses. Density surges to nuclear densities. Temperature reaches a billion degrees. The supernova explodes. Heavy elements, cobalt, nickel, iron, carbon, oxygen, disseminate throughout the cosmos. Instability was no accident. It was the necessary consequence of the metastability of each preceding stage.
Other stellar pathways reveal the same tendency. A white dwarf, the remnant of a star like the Sun, is as dense as the Earth compacted into a volume the size of a planet. In an isolated white dwarf, degenerate electron pressure balances gravity. Yet if the white dwarf accretes material from a companion star, its mass grows. At a specific point (the Chandrasekhar limit, roughly 1.4 solar masses), electron pressure is no longer sufficient. Collapse is inevitable. The white dwarf explodes as a Type Ia supernova, a cosmic event of extraordinary brightness illuminating galaxies.
Neutron stars, pulsars, lose rotational energy, emitting electromagnetic radiation. Theoretically, they will ultimately cease rotating and cool. Black holes, according to Stephen Hawking, evaporate through quantum radiation, albeit on a temporal scale that for many cases exceeds the current age of the universe. None of this, however, is an exception. It is instability desynchronised across different temporal scales.
At the cosmological scale, instability is structural. The universe expands, and expansion accelerates. According to observations of cosmic background radiation and the luminosity of distant supernovae, the universe does not converge toward a final state of thermal equilibrium. It continues to accelerate, dispersing galaxies, diluting energy density, cooling. All matter and energy in the universe is condemned, not in a teleological sense, but in the sense of a materially conditional configuration. The present configuration of the universe is not stable. It necessarily evolves into another.
None of these instabilities is isolated. None is an accident within a fundamentally stable regime. They are manifestations of the same truth: every particular configuration realises a metastability. What appears durable, rock, atom, star, galaxy, is merely that which deals slowly with its own constituent instability.
The vacuum and its fluctuations
The vacuum is not absence. This assertion inverts centuries of philosophical intuition that viewed nothingness as a simple lack of being. In quantum mechanics, the state of lowest energy is not absolute repose but minimal agitation, permeated by fluctuations. Heisenberg's uncertainty principle establishes a fundamental limit: energy and time cannot be simultaneously known with arbitrary precision (\(\Delta E \cdot \Delta t \ge \hbar / 2\)). This implies that over sufficiently short time intervals \(\Delta t\), arbitrarily large energy fluctuations \(\Delta E\) are compatible with physical laws. Virtual particle-antiparticle pairs emerge and vanish; the vacuum is an ocean of fleeting presence.
These fluctuations are not mere mathematical abstractions, they produce measurable effects. The Casimir effect demonstrates this clearly. Two parallel conducting plates brought close together in a vacuum exert a force upon one another, a measurable attraction. The explanation: in the space between the plates, only certain vibrational modes of the electromagnetic field are permitted (those vanishing at the surfaces); outside the plates, all modes are possible. The imbalance of radiation pressure manifests as force. The vacuum exerts pressure; nothingness pushes. Likewise, the shift in hydrogen energy levels, the Lamb shift, is revealed when comparing energies expected by non-relativistic quantum mechanics with observation. The discrepancy arises because the electron continuously interacts with fluctuations of the electromagnetic field, with virtual pairs sprouting from the vacuum. Every atomic transition, every photon emission, is a coupling with this fluctuating substrate.
The ontological consequence is radical: there is no empty space, not even at the quantum level. The real is a continuity of tension, field conformities, reorganisations of potential in perpetual exercise. What we term a "particle" is a localised perturbation in this continuous texture. The vacuum is not an inert stage wherein particles move; it is a generative matrix of ephemeral forms.
Radioactive decay and nuclear metastability
Instability strikes the atomic nucleus. Radioactive nuclides do not persist indefinitely, they reorganise into configurations less charged with energetic potential. Three main modes manifest across contemporary observational scales.
Alpha decay consists of the emission of a helium-4 nucleus (two alpha particles). A heavy nucleus such as uranium-238 emits this particle and transforms into thorium-234. The mechanism is quantum tunnelling: the alpha particle lacks sufficient energy to scale the potential barrier that would confine it; yet a non-zero probability exists of finding it beyond the barrier, having escaped without ever possessing classical energy to do so. The real does not follow pre-established trajectories; it traverses barriers in a reorganisation requiring no continuous transition.
Beta decay is the transformation of a neutron into a proton, with the emission of an electron and an electron antineutrino. The nucleus reduces its neutron count and increases its proton count. The emission of the electron does not result from prior confinement; the electron is created in the very act of transformation. This reveals that the distinction between particles is not fundamental, the material real reorganises into field modes, and what manifests as a "particle" is merely an unstable localisation of energy within certain parameters.
Gamma decay is the emission of a photon when a de-excited nucleus returns to a state of lower energy. Energy accumulated in the nuclear configuration is instantaneously dissipated as electromagnetic radiation. Each decay mode is an instability resolved, the energetic excess that the present form cannot contain is expelled, and the system reorganises into a less charged conformity.
A theoretical possibility awaits verification: proton decay. Grand Unified Theories (GUTs) predict that baryon number conservation is not absolute, being only approximately valid at energy scales near ours. The proton would be metastable, with a decay time estimated at \(\sim 10^{34}\) years. Experiments such as the Super-Kamiokande detector, subterranean tanks sensitive to signals of proton decay, have not yet detected this transformation. Yet the possibility persists: if the proton decays, all baryonic matter, all known structure, is provisional. What presents itself as permanent, the atoms constituting bodies, mountains, planets, would be merely metastable forms whose dissolution is a matter of a sufficiently broad temporal scale.
The stellar scale: equilibrium and rupture
Stars are systems whose history is a succession of provisional equilibria, each exhausted as fuel is consumed. A star like the Sun represents controlled nuclear fusion, hydrogen in the core is converted into helium through fusion reactions releasing energy. This process sustains the star against its own gravitational weight. Core radiation pressure prevents collapse under gravity; gravity prevents the star from dispersing. It is a dynamic equilibrium, not repose.
This equilibrium ends when nuclear fuel is exhausted. A star of solar mass burns hydrogen for \(\sim 10^{10}\) years. When core hydrogen ceases, the core contracts and heats. When temperature reaches \(\sim 10^7\text{ K}\), helium fusion into carbon-12 ignites. The star expands, becoming a red giant. Again, a provisional equilibrium. Helium is consumed; carbon fusion into magnesium ignites. Each new nuclear fuel releases less energy per unit mass than the preceding one. Burning time shortens exponentially.
The fusion chain progresses: carbon, neon, magnesium, silicon, up to iron-56. Iron is the turning point, it possesses the highest binding energy per nucleon. Iron fusion does not release energy; it consumes it. When the core is predominantly iron, fusion halts. Radiation pressure vanishes. The core, now incapable of sustaining itself against its own gravity, collapses in milliseconds.
In this abrupt collapse, density reaches \(10^{14}\text{ g/cm}^3\) or higher. Pressure is such that electrons are forced to combine with protons, forming neutrons. The core transforms into a neutron star, uncompacted nuclear matter so dense that a spoonful would have the mass of a mountain. Or, if the core is sufficiently massive (greater than roughly 20 solar masses), not even neutron degeneracy pressure can resist, collapse continues to a black hole.
This collapse is a supernova, one of the brightest explosions in the universe. The energy released in seconds is comparable to that which the Sun will emit over its entire lifespan. The shockwave irradiating from the explosion disseminates elements produced throughout stellar history, the very elements that, reorganised into different configurations, will permit future structures. There is no teleology here; dispersion is not "for" anything. It is continuous reorganisation, potential actualising itself without inscribed purpose.
The evaporation of black holes
Not even black holes are permanent. Stephen Hawking demonstrated that black holes emit radiation, not because something escapes from within, but because quantum fluctuations at the event horizon generate particle-antiparticle pairs, and one particle, falling inward, leaves the other to escape. The black hole loses mass. Evaporation time depends upon initial mass: a stellar black hole of 10 solar masses would evaporate in \(\sim 10^{67}\) years; primordial black holes, if they existed, would already have vanished. No form is eternal. Instability penetrates even the most opaque, most apparently "final" objects in the universe.
2.3. Instability ≠ entropy: productive reorganisation
A predictable objection arises: is this not simply the second law of thermodynamics, the universal tendency toward increasing entropy? Is instability not merely another name for degradation?
The confusion is understandable, yet operatively harmful. Entropy is a statistical quantity: it measures the number of microstates compatible with an observable macrostate. The second law states that, in an isolated system, entropy increases on average. This means systems tend toward states with more accessible microstates, states, therefore, more "disordered" in an informal sense.
However, this is a property of systems at or near equilibrium. The second law says nothing about systems far from equilibrium receiving continuous energy fluxes. Nor does it say anything about the qualitative nature of transformations. A boulder falling down a cliff increases entropy (kinetic energy dissipates into heat upon impact). A gas cloud contracting under its own gravity to form a star decreases local entropy, the dispersed cloud (high entropy) becomes a star (low entropy). How is this possible?
It is possible because the cloud is not an isolated system. It receives gravitational influence (whose entropic cost is deferred and distributed). Because gravitational contraction releases potential energy, heating the gas and accelerating nuclear reactions, that is, the system far from equilibrium creates structure, locally reducing entropy while globally increasing it. This is the foundation of Prigogine's dissipative structures: order emerges through energy dissipation across the system.
What instability names is distinct from entropy. It names the material capacity for reorganisation, the property whereby every present configuration contains unrealised potentials, unresolved tensions, material differences in suspension. When a star collapses and explodes in a supernova, heavy elements (carbon, oxygen, iron, nickel) disseminate throughout intergalactic space. A common formulation states that these elements were "produced" by the supernova. This is misleading. The supernova did not "produce for" anything. The supernova was a brutal material reorganisation: what was confined within a core was dispersed. Elements are material remnants of this reorganisation, available, subsequently, to constitute future clouds, future stars, future configurations.
Equally: when a molecular cloud (vast, cold, sparse, high local entropy) collapses under gravitational instability (Jeans instability), dense cores form and heat. Fusion ignites. A star emerges. Did the cloud "produce" a star? No. The cloud reorganised. Gravitational metastability was released. Nothing was teleologically oriented. The "seeds" of the star were not there beforehand, written in the cloud's plan. There were material conditions, density above a threshold, microscopic heterogeneities triggering accretion cascades. From these conditions a new configuration emerged.
Instability is, therefore, excess in exercise. The present configuration does not exhaust the material real. It contains energy, tensions, and differences not absorbed by the current form. The real always exceeds its present configuration. This is the opposite of entropic degradation. It is productivity, not in the sense of intentionality, but in the sense that instability enables qualitative changes, new arrangements, new conformities.
An absolute caution is necessary here: this productivity is not "progress". Elements disseminated by a supernova were not "produced for" anything. They are not destined to coalesce into a new stellar system. They may disperse forever in the vacuum. "Cosmic creativity", if one uses this metaphor, is non-teleological. It is non-intentional. It pursues no end. It is the effect of excess without intention, material reorganisation without an author, radical opening of possibilities without guaranteed harvest. Every form emerging through instability might not have emerged. Every existing form is contingent, possible, but not necessary.
Thermodynamic distinction: systems in equilibrium vs. far from equilibrium
The second law of thermodynamics states that the entropy of an isolated system never decreases: in a natural transformation, it increases or remains constant if the transformation is reversible. This holds strictly for systems near thermodynamic equilibrium, where all macroscopic variables can be described by a small set of parameters (temperature, pressure, volume). A gas enclosed in a container equidistributes; a warm fluid in a cold fluid homogenises; every isolated system tends toward maximum entropy, a state of minimal order, equiprobability of microscopic configurations.
The cosmos, however, is not an isolated system near equilibrium. Its nature is continuous expansion. The Hubble scale, the wavelength of cosmic background radiation, continuously increases. The universe does not rest; it is in perpetual transition toward states of lower average density. Simultaneously, local structure emerges, galaxies, stars, nuclei, while total entropy continues to increase. How is this possible?
The answer rests upon gravitation. Gravity is locally anti-entropic. In a gas without gravity, molecules distribute uniformly, maximum entropy. In a gas subject to a gravitational potential, molecules concentrate in regions of lower potential, structure, order, an apparent decrease in local entropy. However, the gravitational work performed in concentration is dissipated as heat and radiation; the total entropy of the system (gas + radiation) increases. There is no violation of the second law. Concentration is possible because the system is not isolated, it is an open system to the expanding universe, supplying the context wherein local order is compatible with growing global disorder.
Excess as motor: the overflowing of the real
Instability, however, is a concept distinct from entropy. Instability refers to the capacity of a system to evolve into qualitatively different configurations through small perturbations. Entropy refers to the number of microstates compatible with a macrostate, the higher the entropy, the greater the number of microscopic arrangements producing the same macroscopic behaviour. A system can possess high entropy and remain stable, completely insensitive to local perturbations. A homogeneous gas at maximum entropy is in stable equilibrium, small local variations disperse rapidly, and the system returns to rest.
Instability is the expression of excess, the present configuration does not exhaust the material potential contained within the system. A supersaturated solution possesses high entropy, many microscopic arrangements of ions in solution, yet it is unstable because the minimum free energy configuration is not the solution, but the crystalline form. Unrealised potential exerts pressure. A supernova is a cascade of instability wherein the energetic excess that the iron core cannot contain produces collapse and explosion. A rotating galaxy is dynamic stability only while mass distribution remains and the gravitational field does not alter abruptly. Introduce a perturbation, a close galactic encounter, tidal disruption, and shear instabilities ignite, bars of matter form, and structure reorganises radically.
The motor is always this: the real is always already charged with potential that the present form does not contain. This is not a deficit of order but a fullness of possibility. Excess is not imminent ruin; it is the condition of change. Without excess, without metastability, the real would be absolute repose, complete determination, absence of becoming. Universal instability is the very index that the real is radically open, that no configuration is terminal, that materiality persists in continuous reorganisation.
Anti-teleology: radical contingency
This fullness of potential is not oriented. There exists no "cosmic creativity" in the sense of the unfolding of a prior plan. When a supernova disseminates heavy elements, carbon, oxygen, silicon, iron, into surrounding space, there is no teleology in this dispersion. Elements were not created "for" future planetary systems. That would be confusing subsequent history with present intention. What occurs is that the energetic excess of the collapsing core produces violent material reorganisation. The result is dispersion. That this dispersion, in subsequent sequences of gravitational accumulation, creates a context for future structures is a posterior, contingent event, without inscription in the present dynamic.
Equally, the production of dissipative structures, Bénard convection rolls, oscillations in the Belousov-Zhabotinsky reaction, is not "progress". The order emerging is a direct effect of thermodynamic irreversibility, not a sign of movement oriented toward superior states. Were the energy flux to cease, rolls would vanish and the system would return to chaos. Structure exists only during the time conditions sustaining it persist. It is no acquisition; it is an ephemeral phenomenon of material dynamics.
Contingency is, therefore, radical. It is not contingency in a weak sense, the uncertain result of causes that could, in principle, be specified. It is constitutive contingency: material instability is rooted in the structure of the real. The real is not determined because it is quantum; the real is not determined because it is thermodynamic; the real is indeterminate because matter itself is constituted by non-necessary potential, by conformities that could be otherwise without contradiction in fundamental laws. The origin of the universe tends toward nothing. The transformations that the real undergoes are not steps along a pre-figured path. Each reorganisation, each collapse, each emission of radiation is an actualisation of potential under specific conditions, without guarantee, without orientation, without purpose.
This is the universalisation of instability: it is no defect that the real is unstable. It is the very condition of its continuous existence, the reason why there is becoming rather than simple permanence of the identical. Form never recedes, never returns to itself as absolutely identical, because it is immersed in a texture of potential that continuously destabilises it, forcing it to reorganise. No configuration is terminal. No structure is sacred. The universality of instability is, therefore, the universality of openness, the cosmos persists in a state of permanent possibility, each present charged with futures that do not allow themselves to be determined.
2.4. Transition
If every particular form, if every specific configuration of matter and energy, is metastable, if every configuration contains instabilities across different temporal scales, then a question imposes itself: can the universe as a totality be an exception? Can the totality of forms be more stable than the parts constituting it?
The answer can be none other than no. If every part is condemned to instability, not through imperfection, but by constitution, then the whole cannot be more solid than its parts. The universality of metastability is universality without qualification. The very accelerated expansion of the universe, demonstrated by distant supernovae observations and confirmed by CMB distribution, is instability on a cosmological scale: space-time geometry does not rest; it does not stabilise in a static configuration. It applies to the whole universe as well. No level of organisation is exempt; no spatial or temporal scale escapes the metastable condition.
This means becoming is not accidental. It is not a perturbation of an eternal, stable being. It is the ordinary, universal regime of the material real. Form does not rest. Every form is a promise of another form, and instability is the fidelity of the real to its own becoming.
3. Declaration of Non-Totality
3.1. Genealogy of cosmic totalisation
The doctrine just exposed, form as unstable configuration, transformation as universal property, meets a particular resistance when it comes to applying it to the whole. Each particular form recognises itself as temporary. The matter composing it will become another. The relations sustaining it will disperse into other constellations. Yet the Western tradition, with remarkable persistence, refused to extend this principle to the whole. The cosmos, as a totality, would escape the instability governing its parts. Precisely here lies the illusion that must be liquidated.
Plato supplied the founding image. In the Timaeus, the cosmos is a living being, a cohesive, perfect body modelled by the intellect of the Demiurge according to eternal ideas. Order is impressed from without. The form of the whole is, in principle, a refuge against variation: the cosmos as an immortal animal, self-sufficient, enclosed within a sphere containing everything. Each part submits to the harmony of the whole. The structure is hierarchised: celestial spheres in perfect motion, the sublunar region in transformation, yet all of it involved in a comprehensible unity. The Platonic cosmos is an object, intelligible, finished, complete in itself.
Aristotle radicalises and systematises. The cosmos is finite, a sphere of determined radius containing all things. It is spherical, a perfect form, without excess or deficiency. It is hierarchised, from the lunar sphere inward, corruption and generation; above, eternity and perfection. And precisely because it is hierarchised, it is intelligible: each thing is known by its place in the order. An object-universe, delimitable, intelligible in its totality. The form of the whole is not transitory, it is substance. This model exercised dominance for more than fifteen hundred years. Not even medieval Christian cosmology destituted it: it repositioned it, centring the Earth and its celestial circles, yet preserved the architecture of a finite, spherical, hierarchical, closed cosmos.
Giordano Bruno, on the threshold of modernity, unseals the enclosure. The universe is infinite. There is no privileged centre, nor periphery. No encompassing sphere containing it. Space extends without term. Infinite worlds inhabited by infinite creatures. The rupture is radical: Aristotle is rejected, hierarchical structure is rejected, the closure of the cosmos in concentric spheres is rejected. However, and this is decisive, Bruno reposes the question upon a metaphysical background. Infinitude is an attribute of the Divinity projected into material reality. The infinite is still a principle, still a totality, only immense, uncircumscribed, incomprehensible. The infinite universe is infinitely real because it is the expression of the divine Infinite. Totality persists: it merely unfolds into infinitude.
Kant diagnoses the impasse with cutting precision. In the Antinomies of Pure Reason, the philosopher develops demonstrations that reason necessarily falls into contradiction when attempting to totalise. If one asserts that the universe is finite (thesis), reason demands to know what lies beyond its boundary, falling into absurdity. If one asserts that it is infinite (antithesis), reason demands to comprehend it as complete in itself, as a totality, which is likewise contradictory. The same occurs with the question of beginning: is there a first moment (thesis) or is the universe eternal (antithesis)? Both positions involve logical impossibilities when applied to the cosmos as a totality. The antinomy is no transitory loophole of theory. It is a structural property of the operation itself. Reason cannot think totality without contradiction. However, and here Kant simultaneously inverts and retreats, the philosopher locates the discord within the transcendental subject. It is the form of human knowledge that cannot encompass totality. The universe as totality exceeds possible experience; therefore, it is not an object of metaphysics, but the limit of all experience. The displacement that must be executed is distinct: non-totality is not a deficiency of the knowing subject. It is a material property of the real. The real does not present itself as totality because it is not a totality. In this Kant lit a lamp, but extinguished it immediately, re-dispatching the question to subjective and transcendental structure.
Hegel attempts the inverse gesture: returning to totalisation and restoring it as an immanent process. The Absolute is no longer an exterior God or a harmonious sphere, it is Reason in motion, dialectically self-conscious. The real is rational, and rationality is a history of self-overcoming. Totality emerges as an immanent result, not as a transcendent starting point. Material process is the very genesis of the cosmic Subject. Negation engenders the negation of negation; contradiction moves toward synthesis; the alienated rests in itself. The greatest intellectual ambition to rescue unity was also the greatest conceptual capture. For Hegel rescues precisely that which must be refused: a cosmic Subject recognising itself through history, a teleology orienting dispersion toward final reconciliation, a rationality domesticating contingency and reabsorbing it into necessity. Hegel offers real gains, he abandons the transcendent God, discovers that process is constitutive, that the real is immanent. Yet he reintroduces fatal losses, the Subject that knows, the Reason that commands, the end wherein everything reposes. Hegelian non-totality is merely apparent, dialectics anticipates it, comprehends it, and gathers it into the Absolute. In the end, everything is reason. Everything converges. Everything is repose in itself.
The refusal must be clear. Material process does not converge toward self-determination. It disperses. It configures and reconfigures into forms that no universal Subject recognises, nor gathers, nor comprehends. There is no Absolute retaining history. There is no reconciliation finalising process. There are only material differences reorganising continuously, without point of repose, without final synthesis, without truth restoring them to the one. History has no meaning, in the sense of direction or significance. It has only process. Differences transforming without convergence.
This genealogy is no academic exercise. Each position marks a specific mode of resistance to the consequence that must now be accepted. If every particular form is metastable, if each configuration carries within itself its own imminent destruction, then the universe as the "totality of forms" cannot be an object. The non-totality of the real is no late discovery or inconvenient aporia of contemporary physics. It is the deductive conclusion of the very instability characterising every material configuration.
3.2. The universe is not delimitable, unifiable, nor self-identical
Demonstrating this requires descending to material constraints. The universe ceases to be an abstract category and becomes a concrete field of indetermination, not because knowledge fails, but because the investigated reality is intrinsically indeterminable.
Delimitability is the first illusion to dissolve.
Every observer is situated within a cosmological horizon, comoving, approximately 46 billion light-years, beyond which no electromagnetic information arrives. This horizon is frequently presented as the limit of the observable universe. The phrasing is precise: observable. It is not the limit of the real universe. Nor even the limit of the material real universe. It is solely that which light, in the propagation times available from the Big Bang event to the cosmic present, has managed to reach. The distinction matters. The cosmological horizon is the limit of what is accessible to the current inscriptive regime. However, the real universe extends beyond this limit. Not as "invisible space", but as a remnant of material reality that no future observation will ever reach.
Every observer, every point of relational space, possesses its own horizon. An observer situated billions of light-years away would have a shifted, distinct horizon. This means the "observable" universe is perspectival, depending upon location and relative velocity of the observer. There is no single observable universe. There are multiple overlapping observable regions, each with its own horizon, each incapable of seeing beyond its limit. The real total universe, if this has meaning, is vastly larger, incommensurable beyond this limit accessible to us.
Cosmic inflation, as developed by Alan Guth in 1981 and refined by Andrei Linde and others, radically complexifies this picture. The standard cosmological model, based on Friedmann equations derived from general relativity, predicts that in a very primitive epoch (\(10^{-36}\) seconds after the Big Bang), the universe underwent a period of exponential expansion. In an infinitesimally short interval, microscopic regions expanded to cosmological dimensions. This mechanism explains why the observable universe is so uniform and why energy density is so finely calibrated. It also implies that the total real universe, prior to any observation, is arbitrarily larger than the observable one. Certain inflation models (Linde's eternal inflation) permit this process to continue indefinitely in distinct regions, generating a multiverse, a foam of distinct universes, each with its own physical laws and fundamental constants. Whether inflation is simply finite or eternal, the conclusion remains: the total universe is incommensurable beyond the horizon.
Furthermore, the global topology of the universe, its three-dimensional (or higher-dimensional) shape, remains indeterminate. The universe may be closed (sphericity, positive Ricci curvature), open (hyperbolicity, negative curvature), or flat (zero curvature). Current cosmological consensus suggests flatness, yet this is a conclusion derived from the model. Connectivity also varies: topology may be simple (simply connected, without "holes" or "handles") or multiple (with topological handles permitting trajectories returning to origin after encircling space). No direct observation can access information regarding global topology. CMB anisotropies, the temperature variation map of the cosmic microwave background, constrain possibilities but do not eliminate indetermination. If the universe were slightly more curved or connected in a more complex manner, effects would be too subtle to detect with current sensitivity. No future observation will measure global topology, because to measure something, one must access a scale comparable or larger. The total universe is larger than any possible observation scale. Global topology is, therefore, forever indeterminate by the observable.
Eternal inflation further expands this picture. If the inflationary process continued indefinitely in distinct regions, as certain models suggest, then there exists not merely one universe, but a multiplicity of universes, each with potentially distinct fundamental constants and effective laws. This multiverse is simultaneously a product of physics and an unobservable fiction. No observation can access universes outside our horizon. Nor is there a unifying principle governing proliferation. It is pure proliferation, a multiplication of realities without a totality containing them. The question "why are there universes?" possesses no physical answer. The multiverse is the effect of physical dynamics itself, yet it also declares the impossibility of answering why physics is as it is. The explanatory chain ends not in a foundation, but in endless multiplication. This indetermination is no transitory gap of contemporary cosmology. It is a material constraint. The universe is not delimitable because the material real constituting the universe possesses no measurable delimitation.
Unifiability is the second illusion.
The universe operates across radically irreconcilable scales. Quantum mechanics governs the microworld, elementary particles, atoms, atomic nuclei, revealing behaviours without parallel in macroscopic experience or classical intuition. Superposition: a particle exists in multiple states simultaneously until measurement. Entanglement: two distant particles behave in a correlated manner, instantaneously, without a known mechanism of transmission. Observation effect: the very act of measurement affects the state of the particle, collapsing superposition, reducing possibilities. Indetermination: position and momentum cannot be simultaneously determined; energy and time are correlated such that the more precise the former, the less precise the latter. General relativity governs the macroworld, galaxies, galaxy clusters, the global structure of space-time, revealing a radically distinct geometry. Space-time is not an inert container wherein things move. It is a dynamic entity, curved by the distribution of matter and energy. Curvature is gravity. Gravity is not a classical force acting across space; it is the expression of the geometry of relational space. Matter and energy deform space-time; space-time so deformed guides the motion of matter. This is a relational circularity of a fundamentally different type from quantum mechanisms.
Where these scales meet, within black holes, where matter concentration is extreme and curvature diverges to infinity; in the primordial universe, in the first moments after the Big Bang, where energy density was incomprehensible, the two theories enter open conflict. Quantum mechanics and general relativity are incompatible. Quantum field theory, attempting to combine quantum mechanics with special relativity, produces infinities, integrals diverging to infinity, in any attempt at calculation precision. Renormalisation procedures, mathematical techniques absorbing these infinities into parameter redefinitions, function pragmatically: they permit extracting predictions agreeing extraordinarily with observation. Yet they are confessedly mathematical tricks, not ontological solutions. Quantum gravity, despite seven decades of intense research, attempts via canonical quantum gravity, string theory, loop quantum gravity, geometrogenesis, has not been achieved. No satisfactory theory manages to combine, coherently and without infinities, quantum mechanics and general relativity. Not for lack of ingenuity or computational power. Because the scales involved, Planck length (\(10^{-35}\text{ metres}\)), Planck time (\(10^{-43}\text{ seconds}\)), Planck energy (\(10^{19}\text{ GeV}\)), sit so far removed from observation that no future experiment will access them directly. The most powerful particle accelerator imaginable, galaxy-sized, powered by the energy of all stars, would still fail to reach Planck energies. The theoretical unification of scales seeks to link these two rival descriptions of reality. Yet it is a search remaining perpetually deferred, not for lack of trying, but because the material reality attempted to be unified is, perhaps, intrinsically multiple in its regimes.
Overlaid upon theoretical difficulty is an even deeper observational difficulty.
Approximately 27% of the material and energy content of the universe is dark matter. A misleading designation. It is not invisible matter, obscured by cosmic dust, interstellar dust, or gravitational absorption. It is material difference inferred solely by its gravitational response. No telescope, no spectrograph can detect it by electromagnetic radiation emission or absorption. Its existence is postulated solely because observed dynamics violate predictions.
Galactic rotation curves present the classic case. If only visible matter (stars, gas, dust) contributed to gravitation, the orbital velocity of objects should decrease with distance from the centre, exactly as planetary orbital velocity decreases with distance from the Sun. Newtonian prediction is clear: \(v \propto 1/\sqrt{r}\). One observes something radically distinct. Rotational velocity remains roughly constant, independent of distance from the centre. The rotation curve is flat. This is robust observation, confirmed for hundreds of galaxies of all morphological types. Were only visible matter present, outer galaxies could not rotate so rapidly, they would be torn apart by centrifugal force. Something else, much more, contributes to gravity. Something invisible to electromagnetic radiation: dark matter. Spectroscopic estimates suggest the ratio between visible and dark matter is roughly 1:5. For every kilogram of visible matter, there are five kilograms of dark matter.
Gravitational lensing strengthens this conclusion. General relativity predicts that light, passing near a mass concentration, is deflected. Mass acts as a lens. Regimes are observed where magnification and deflection are consistent with mass concentrations emitting no light. Galaxy clusters contain far more mass, inferred by gravitational lensing, than that corresponding to luminous matter. CMB anisotropies, the map of the primordial universe as it appeared 380,000 years after the Big Bang, when photons decoupled from matter and began travelling freely, require, for consistent explanation, a material environment far denser than that emitting radiation. Acoustic oscillations visible in the CMB map reflect the presence of dark matter. Dark matter is a necessary inference, converging from multiple lines of evidence.
Yet identity remains unknown. Candidates are proposed: axions, very light and numerous particles, originally proposed to resolve problems in quantum chromodynamics? Neutralinos, superpartners of known particles, predicted by supersymmetry? WIMPs, Weakly Interacting Massive Particles, massive particles interacting only gravitationally and through the weak nuclear force? Sterile neutrinos, "sterile" neutrinos interacting neither weakly nor electromagnetically, only gravitationally? None of these candidates has been conclusively identified. Multiple direct detection experiments, xenon spectrometry, cryogenic ionisation chambers, seek to detect dark matter interacting with ordinary matter. No conclusive detection. Dark matter is real, it operates, acts, prints measurable effects upon galactic dynamics and primordial universe structure. Yet its manifestation remains veiled. The material real constituting 27% of the universe resists phenomenological identification.
Parallelly, approximately 68% of the content of the universe is dark energy. A designation even less satisfactory than the former. It is not "energy" in the classical sense, kinetic heat, motion, electromagnetic radiation, potential energy. It is a cosmological operator associated with the acceleration of the universe's expansion. The cosmological constant (\(\Lambda\)), introduced by Einstein in general relativity field equations and later abandoned for decades, is currently the best theoretical candidate. It represents an energy density remaining constant through time and space.
In 1998, three independent teams, led by Saul Perlmutter, Brian Schmidt, and Adam Riess, studied Type Ia supernovae in distant galaxies. Deceleration was expected. Gravity, acting from without inward, should slow expansion. The universe began hot and dense; gravity should have slowed its accelerated expansion in early moments. The opposite was observed. Expansion is accelerating. Distant regions recede from one another with increasing velocity. Something pushes the fabric of space-time apart. This "something" is immaterial relative to classical frames. It is not ordinary matter, it would be observable. It is not radiation, it lacks radiation properties. It is not dark matter, dark matter attracts gravitationally. It is an operator that repels. Dark energy is, therefore, a property of relational space in transformation, or, in the precise language of general relativity, a property of the space-time metric.
The magnitude of this operator is remarkably calibrated. A 1% difference in observed value would entail radical cosmic consequences. Were it 10% larger, the universe would have expanded so rapidly in early moments that no galaxy could have formed. Primordial quantum fluctuations would have been stretched beyond gravitational reach. Large-scale structure, galaxies, clusters, would not exist. Were it 10% smaller, the universe would have re-collapsed into itself billions of years ago. No star would have had time to be born and die. No complex chemistry. The calibration is extraordinary. Why? Quantum field theory offers a guess: zero-point energy of the quantum vacuum, residual energy remaining even in the vacuum state, should contribute to the cosmological constant. Calculations predict a value for this vacuum energy density. The observed value is different. Not merely slightly different. It is smaller by a factor of \(10^{120}\). This figure is incomparable: a 1 followed by 120 zeros. No numerical discrepancy in any other science approaches this abyss. It is termed the "worst theoretical prediction ever". Dark energy resists not merely phenomenological identification, like dark matter, but theoretical framing itself. It is a material difference that the current inscriptive regime can infer through observed cosmological acceleration, yet whose origin and nature remain indeterminate.
The third illusion is self-identity.
The contemporary universe is radically different from the universe one second after the Big Bang. Then, temperature above \(10^{15}\text{ Kelvin}\); now, average temperature of \(2.725\text{ Kelvin}\). Then, incomprehensible matter-energy density concentrated in a microscopic volume; now, density dispersed in accelerated expansion, with galaxies separated by abysses of empty space. Then, elementary particles still formless and decoupled; now, structure crystallised into atoms, molecules, galaxies, and cosmic filaments billions of light-years long. Transformation is not accumulation, it is a total reorganisation of material constitution.
The primordial universe did not "contain" the present universe as if a hidden plan were gradually unfolding. It was a completely distinct material regime. Constituents were different. Symmetries were different. Effective laws were different, to the extent that one can speak of "laws" in a regime where the very notion of classical law was inapplicable. Transitions between epochs, the electroweak transition, where electromagnetic and weak nuclear forces unified into a single regime; primordial nucleosynthesis, where atomic nuclei formed, were points of profound breakage, not simple continuous development.
Worse: the accelerated expansion of the universe, revealed in 1998 and reaffirmed by subsequent measurements, renders the cosmological horizon dynamic. Regions today accessible to us, that is, regions from which light can reach us, will become unreachable in billions of years. Light from those regions, travelling through space in accelerated expansion, will never reach us. The observable universe will shrink. In a very distant future, observers at our cosmic location will see only galaxies gravitationally bound to us (the Local Group, Local Supercluster). Everything else will have vanished beyond the cosmological horizon. The observable universe is, therefore, transitory. It changes with time. If the observable universe changes, and if the real total universe is incommensurable beyond the observable, then the identity of the universe is fundamentally transitory. There exists no "universe in itself" as a permanent entity identical to itself through time. There exist continuous material reconfigurations, loss of structure, energy dispersion, reordering of relations, that no fixed designation can retain.
3.3. Dark matter and dark energy as ontological limit-cases
Here lies the most fracturing point of the argument. Dark matter and dark energy are not simply unknowns, open problems that future research will solve. They are limit-cases wherein the distinction between real, concrete, and theory displays its most acute necessity. They are points where material reality refuses to coincide entirely with manifestation. They are moments where the inscriptive regime reaches its constitutive limits.
Dark matter as an extension of the real
Dark matter presents itself, superficially, as "invisible matter". The expression is misleading. The concept of matter, material difference, configurational tension, that which affects other configurations through gravitation, is sufficiently broad to include that which emits no electromagnetic radiation. Ordinary matter is opaque or luminous because its atoms absorb, re-emit, or reflect photons. Electrons jump between energy levels, emitting photons at characteristic wavelengths. Dark matter does not do this. It lacks electrons (or possesses them without exhibiting transitions that emit photons). Yet it operates. It curves space-time according to general relativity. It organises galactic dynamics. It leaves indelible marks upon the cosmic microwave background map.
The decisive philosophical point: the material real operates even when the inscriptive regime does not manifest it. Dark matter is not "beyond the real", it is real that the concrete infers through gravitational conformities. Galactic rotation curves are concrete, data, direct observations. Gravitational lenses are concrete. CMB anisotropies are concrete. From this concrete, the existence of dark matter is inferred. And theory, models of cold dark matter (CDM), warm dark matter (WDM), alternative hypotheses like MOND, reorganises these data into comprehensible schemes. The tripartition functions with precision. The material real exists and operates; the concrete, observational conformities, renders it legible; theory organises it into models and predictions. Dark matter thus exposes a decisive truth: "material" does not coincide with "manifestable". The material real vastly exceeds that which the inscriptive regime can capture phenomenologically. There is more matter in the universe than that which shines. There is more reality than visibility.
Dark energy as constitutive indetermination
Dark energy is an even more radical case. It is not a "mysterious energy", it is a cosmological operator associated with expansion acceleration. The cosmological constant (\(\Lambda\)) is, perhaps, the best theoretical candidate. However, the vacuum density prediction, the residual energy of the quantum vacuum, made by quantum field theory deviates from the observed value by 120 orders of magnitude. This numerical abyss is no correctable error of contemporary theory. It is no lack of precision that future measurements will rectify. It suggests that the concept of "energy", as understood in classical and quantum physics, does not apply entirely to the cosmological operator in question. Dark energy is not a field in Faraday's or Klein-Gordon's sense. It is not a particle. It is not radiation. It is a relational property of space-time in transformation, or perhaps a property of the quantum vacuum in contexts of extreme gravitational curvature.
Theory quantises it as the cosmological constant \(\Lambda\); the concrete records observed acceleration through distant supernova spectra and CMB anisotropies; the real operates as constitutive indetermination that does not reduce completely to any of these registers. Dark energy is, therefore, a case in which the real resists not merely direct phenomenological manifestation, but complete theoretical determination. Not because knowledge is insufficient, because the material operation in question is, ontologically, indeterminate. There is no hidden truth about dark energy that future research will reveal simply by perfecting models. There is a material operation genuinely irresolvable within available conceptual frameworks.
The discrepancy of \(10^{120}\) is precisely a sign of this. It is no calculation error. It is an indicator that theory fails to capture the operating real. Were vacuum energy predicted by quantum field theory indeed (even on a reduced scale) the source of dark energy, the observed value should lie near the prediction. The abyss of 120 orders of magnitude suggests we are speaking of two distinct things, or that field theory is inapplicable to the cosmological regime in question. Dark energy is a material difference that the current inscriptive regime can infer through observed cosmological acceleration, through gravitational conformities regulating expansion, yet whose origin and nature remain indeterminate. There is no single truth that would explain it. There are possible operators, cosmological constant, quintessence (a dynamic field instead of a constant), dark matter coupled to curvature, yet none offers a complete answer. There is a permanent breach between model (theory), data (concrete), and that which operates (real). Dark energy marks this point of irresolvable fracture.
The joint consequence: 95% of the universe is non-manifest
Visible matter, that emitting, absorbing, or reflecting electromagnetic radiation, accessible to our telescopes and spectrographs, constitutes a mere 5% of the material and energy content of the universe. The remaining 95% operates outside direct manifestation. Were "reality" defined as that which the inscriptive regime captures, 95% of the content would be unreal. The reasoning is absurd. The necessary conclusion is the inverse: the current inscriptive regime accesses a minute fraction of the material real. The total real is vastly more extensive than the concrete we can measure, observe, photograph, or spectrograph.
This radically alters the relation between knowledge and reality. For centuries, natural philosophy and later science operated under an implicit assumption: the investigable is roughly coextensive with the real. What could be measured was essentially what existed. The assumption was reasonable in its context, were reality fundamentally and massively inaccessible, scientific enterprise would be impossible. But dark matter and dark energy reveal something disturbing. Not only is the real partially inaccessible, this was already recognised. It is partially inaccessible in a constitutive and permanent manner. It is no lack of advanced instrumentation. It is no lack of time, technique, or ingenuity. It is that 95% of the content of the universe operates outside any regime of possible manifestation through electromagnetic radiation. Dark matter does not interact with light. Dark energy is an operator whose nature resists complete formulation within existing theoretical frameworks. Knowledge has limits not merely because the subject is finite, Kant knew this, but because the real is constitutively more extensive than the knowable. The real permanently exceeds that which inscription can capture.
Within this inaccessible real, there is no homogeneity. Dark matter, roughly 27%, is probably an extension of the concept of matter to particles or fields not yet identified, yet fundamentally material, tensional differences in a continuum with ordinary matter. It operates through gravitation. It may interact weakly with ordinary matter. It remains, in logical structure, matter, a configuration affecting and affected, a difference modulating other differences. Dark energy, roughly 68%, is ontologically distinct. It is a cosmological operator of a nature still indeterminate, distinct in type from any known phenomenon, not reducible to classical frameworks of energy, field, or particle. Indiscriminate fusion of these two components under the common label of "dark matter-energy" would be a grave conceptual error. They belong to distinct ontological regimes. The universe is, therefore, non-unifiable not merely through the incommensurability of theoretical scales (microworld vs. macroworld), but through the intrinsic and irreducible heterogeneity of the real constituting it. It is no homogeneous totality. It is a heterogeneous multiplicity.
Fine-tuning and its correct ontological location
As for fine-tuning, the remarkably precise calibration of cosmological parameters permitting structure formation, the response must be absolutely clear. Fine-tuning is an inscriptive problem, not an ontological one. It is no property of the real. It is a relation between concrete and theory. It belongs to the domain where knowledge operates, not to that which is known.
The current cosmological model (Big Bang, cosmic inflation, cosmological constant, dark matter) predicts that certain parameters, average universe density, ratio of ordinary to dark matter, magnitude of the cosmological constant, amplitudes of primordial quantum fluctuations, must sit within very precise intervals, without which gravitational structure does not form. Had these parameters slightly different values, the universe would be qualitatively distinct. Were density 1% larger, the universe would have re-collapsed before any galaxy formed. Were it 1% smaller, matter would have dispersed too rapidly. Were the cosmological constant 1% larger, expansion would have dominated such that no galaxy formed. Were it 1% smaller, gravity would have re-collapsed everything. This observational fact is true and important. The required precision is extraordinary. However, and this is crucial, precision belongs to the concrete (data, measurements, comparison between observation and theoretical prediction) and to theory (models generating predictions for these parameters). It does not belong to the real.
Projecting upon the real the necessity of this precision, as if the material universe had been "tuned for" observers or structure, would reintroduce through the back door the teleology explicitly rejected. The real was not "tuned for". The real differentiates into contingent configurations. The concrete revealed that the particular configuration wherein we sit, in this particular universe, with these particular parameters, possesses characteristics permitting structure formation. This is valuable information of the concrete and theory. It is an observational constraint restricting theoretically compatible models. But it is no property of the real. The real is indeterminate regarding this. The universe of today exists with the parameters it possesses. Counterfactual possibility exists, "had parameters been different, the universe would be distinct". Yet this possibility lives in theoretical space, not in the real. The real is what it is. What could have been remains in the realm of modality, a symbolic category that the real does not inhabit.
3.4. The consequence: the universe as an open field
If the universe is not delimitable, cosmological horizon being the limit of manifestation, not of existence, it is not totalisable. If it is not unifiable, irreconcilable scales, heterogeneous ontological regimes, 95% of content inaccessible, it is not an object of complete knowledge. If it is not self-identical, transforming radically in structure and content, dynamic horizon becoming unreachable, it is no permanent entity. What remains? An open field of material reorganisation. Without an exterior, because there is no prior container. Without an isolated interior, because material relations continuously constitute their own configuration. Relations are not contained "in" a universe, relations constitute the universe. Matter does not rest in space. Space is not a container of matter. Matter and space are aspects of the same relational texture.
If the universe is not an object, not a delimitable, unifiable, self-identical totality, then the final metaphysical illusions collapse. God as an exterior creator, where would one place him, if there is no exterior? If there is no space to position a transcendent creator, the metaphysics of the creator is symbolic fiction, not a description of the real. Foundation as prior ground, what would support it? If there is no repose of the real, if there is always transformation, always difference, then there is no stable ground sustaining it. Centre as a privileged point, relative to what, if there is no periphery? General relativity had already shown there is no privileged point in space. Now we see there is also no point in time, no point of repose in matter, no totality wherein history converges.
Nor is there an immutable essence subsisting beneath transformation. If the universe is not self-identical, if it changes radically in constitution, operating regime, and structure, then there is no essential core persisting. That which we term "universe" is a provisional designation for a set of relational processes reorganising continuously. Yesterday it was a primordial regime of extreme temperature; today it is a regime of galaxies and accelerated empty space. No "universe in itself" subsists through these transformations. There are only succeeding material differences, without substance sustaining them, without essence gathering them.
The non-totality of the universe is no defect or loophole to lament. It is a positive property of the real. It means material reality does not gather into any final form, any synthesis, any truth containing it. It means there is always excess, always unsubsumed difference, always unactualised potential, always virtuality that the concrete does not exhaust. It means there is always process, always transformation, always reorganisation, always reconfiguration. It means the stability of particular forms is a local and temporary conquest, sustained by energy fluxes, material tensions, relations that no fixed measure can completely retain. It is a conquest continuously undoing itself. It is an order that chaos reorganises. No repose is possible.
Comprehending this means unravelling millennia of illusion. The cosmos is not an object offering itself to intellect as a cognisable totality. It is not Plato's harmonious sphere. It is not Aristotle's hierarchised cosmos. It is not Bruno's infinitude. It is not the Hegelian Absolute gathering history. It is an open, heterogeneous, incommensurable field, multiplicity without synthesis, process without destination, difference without repose. What this entails for inquiry is that the real always exceeds the known, not through a transitory gap, but by constitutive material structure. There are always regions of the universe beyond the horizon that no future observation will reach. There are always irreconcilable scales, quantum and gravitational, that no future theory will completely unify. There are always operators whose nature remains indeterminate, dark energy and much of dark matter. This is no failure of science. It is an essential discovery: that the real is vaster, more multiple, more heterogeneous than any model representing it. And that this heterogeneity is not provisional, it is permanent.
And this entails also that there is no foundation in the traditional metaphysical sense, no prior ground, no supreme principle from which everything would derive. If the universe is not a totality, there is no point of repose where reality sustains itself permanently. If the universe is not delimitable, there is no exterior whence a creator could act transcendently. If the universe is not self-identical, there is no immutable essence defining it and persisting through transformation. There is only matter differentiating, relations reorganising, configurations transforming, indefinitely, without a metaphysical point of origin, without a final point of repose. Matter does not rest in a prior container, in a frame sustaining it. Matter is the very texture of the real, a relational fabric without an external frame, a continuous process without an arrival point, a difference without repose.
Closing Aphorism: Matter does not rest in a prior container, it is the very relational texture of the real, without external frame, without point of support, without ultimate truth to retain it.