Paper 51 — Adjacency Theory

Active Evolution

Abstract

How things come into being or why they exist at all is not always a mystery. Mating produces offspring, plants grow from seed and soil, mushrooms sprout from fungi, and more. But what if the way things come into being is because they are supplied by what is adjacent to them, and that same adjacency also gives them their shape and function? Elements unseen may be contributing to how things evolve before they even exist, then during formation and after whether in the air, in the water or in the soil, and acknowledgement or recognition of it is beside the point. Evolution was never a stagnant process, but is in flux, ongoing and what we are right now is also part of what we are becoming. And it's not just about survival, it's about what we are adjacent to.

1. Adjacency as Mechanism

The interaction produces the form, and it can produce anything only because the things are adjacent. Adjacency is therefore not a background condition off to the side of the mechanism. Adjacency is the acting principle of what's available from chemistry to biology. Nothing acts alone, it's the relation between them. The field is being read by what's nearby and that's the mechanism interacting to produce form.

Physics: fields, oscillation, resonance, symmetry. Chemistry: bonds forming by electron configuration seeking lower energy. Biochemistry: molecules recognizing and binding by shape and charge. Bioelectricity: cells reading voltage gradients across membranes. Physiology: tissues coordinating by those signals. Biology: organisms responding to what's adjacent.

2. Intelligent Selection

Adjacency has a field, and it is not neutral proximity. The thing that acts in it is energy, and what a system becomes in that field is an attractor state: the configuration a network of interactions converges to and holds. This is not a metaphor borrowed from physics. It is the established model of how a cell becomes what it is. A gene regulatory network is a dynamical system, and its attractors are the cell types (Kauffman, 1969; Huang et al., 2005). Waddington's old image of a marble in a valley is now written this way, with the valleys as basins of attraction and a differentiated cell as a system that has reached one (Wang et al., 2011; Ferrell, 2012). Nothing chooses. The interactions run, and the system arrives at a form its own dynamics allow.

What is adjacent during the window does not author the form directly. It tips which attractor the system reaches. Fate decisions are points where a signal shifts the probability of landing in one basin rather than another (Moris et al., 2016): the same genome reaches a different form because a different thing was adjacent as it formed. This is the paper's window-and-permeability claim in the vocabulary biology already uses. TSD, caste, and the segmentation clock are all adjacent conditions reshaping which attractor a system reaches during the window.

An attractor is not a finished or maximally stable endpoint. Mature cell-type attractors can be less stable than the trajectories that reach them, the path more robust than the destination ("Attractors are less stable than their basins," bioRxiv, 2025). The form is a result that stays open: held while its conditions hold, perturbable when they change. This is the abstract's line in mechanical terms. The form is the result, but the elements are still working on it.

Bioelectricity is where this is not figurative. The same quantity, charge or potential or gradient, carries across a battery and across a cell membrane, and a membrane potential is a voltage in the same physical sense a wire has one. Here the field, the signal, and the settling are literal and measurable.

Reserved — your line: what "intelligent" names here. The section now stands on attractor dynamics, which are physics with no chooser. Whether that settling is only physics or something more is the open question you are holding; the word is yours to define or retire, and the title follows from it.

3. The Boundary That Resists

The preconditional is no longer intelligent because it forecloses by limitation, providing less to select from. Decides in advance forecloses, attraction pulls closer. Freedom is what allows adjacency at all in which attraction can operate. Remove freedom and there is only the rule, recombine what is already permitted.

When an attractor state is detected, the penetration of a boundary can potentially become a new form — including thought-forms, which also eventually become things because there is the freedom to explore everything available to it Creation and creativity have the same trajectory — energy reaching toward symmetry or what nourishes it, not what destroys it, a mind reaching toward ideas that quicken into action, something new arriving by that inter-action. This is more imagination than form, but the machination at work here is the image of the thing before it's formed.

The same boundary that resists is also what exists as the frontier a thing must meet. Its presence imposes a condition, and where the condition is real — a genuine meeting of two states, water and land, one medium and another — the response is forced: the form changes, or it does not persist. A thing under a real boundary condition during its formative window cannot remain unchanged and endure. This is the pressure that makes becoming necessary rather than optional. The boundary is not only a barrier to cross; it is the reason there is anything to become at all — the edge that resists is also the edge that exists, and existing there, it forces what meets it to evolve or to cease.

4. Recognition, Then Merger

The productive event has two separable steps: two systems attract through energy or pattern, and then attempt to merge.

In fertilization, recognition and fusion are carried by a unique instance of species-separable machinery. The sperm protein IZUMO1 and the egg protein JUNO are the only proven trans-interacting pair; IZUMO1 recognizes JUNO, and that recognition is followed by membrane fusion. Neither is, on the standard account, the fusogen — recognition brings the two membranes into juxtaposition, and a distinct step performs the merger (Bianchi et al., 2014; Ohto et al., 2016; Inoue et al., 2015). What is recognized is a specific conserved shape, not mere contact: JUNO of one species can bind IZUMO1 of another in vitro, so the recognition is pattern-specific rather than proximity alone.

The general form: adjacency close enough that two patterns can read each other, recognition of a matching pattern, and merger across a resisting boundary into a form that is neither parent.

5. Oscillating Attractors: Selection at the Moment of Coupling

Different systems may recognize each other by frequency — by oscillation, resonance and phase-locking.

Coupled biological oscillators phase-lock through the Kuramoto model, documented in cardiac pacemaker (sinoatrial-node) cells, neuronal populations, and other systems (Kuramoto, 1984; Winfree, 1967; Peskin, 1975; Jalife, 1984). The synchronization of pacemaker cells arises from mutual entrainment and coupling, not from a single master clock (Jalife, 1984). Locking is a threshold event: above a critical coupling strength the population locks; below it, it does not — a temporal phase transition.

In development this coupling is not only a rhythm but a form. The vertebrate segmentation clock, the coupled oscillator in the presomitic mesoderm that lays down the body's segments, sets morphology directly: the oscillator's frequency sets the rate of segmentation, and disrupting the Delta-Notch coupling between cells lengthens the clock's period and increases segment length to match (Herrgen et al., 2010). Change the coupling and the form changes with it — no altered gene, no external cue. The coupling authors the morphology.

This is a different kind of selection from the Darwinian kind, and it is the theory's own ground. Darwinian selection is subtractive and external: many variants exist, most die, survivors remain. It requires a population, death, and time, and it starts the clock after the form already exists. Frequency selection is neither subtractive nor external. When two oscillators lock, nothing died and no population was filtered. The selection happened at the moment of coupling, by whether the frequencies matched closely enough to entrain — one event, two systems, resolved by resonance. Frequency therefore selects which form comes into existence, not which existing form persists. It is an event upstream of the territory natural selection describes.

That form follows resonance at a boundary is demonstrable outside biology. On a Chladni plate, sand settles into geometric patterns set by the driving frequency and the plate's boundary conditions; change the frequency, change the form (Chladni, 1787; Faraday, 1831). The sand is not instructed — it settles where the energy conditions at the boundary place it. This shows that selection by frequency generating form is not exotic; it is reproducible on a metal plate. (The measured physics is cited here; the mystical "cymatics" literature is not.)

6. Symmetry, Broken and Reformed

In the physics of phase transitions, the high-symmetry state is the field itself — the homogeneous, oscillating medium, the same in every direction and at every point. A liquid holds the full symmetry of all translations and rotations; the ordered structures that form within it hold less (Brézin). In this precise sense, symmetry is the energy in the field, the waves, the oscillation — the uniform state a system rests in.

Form appears when that symmetry is broken by what moves into the field. This is spontaneous symmetry breaking, a documented route to form in both physical and biological systems. A liquid freezing to a crystal breaks its translational and orientational symmetry (Russo & Tanaka, 2012). An embryo generates its body plan through a series of symmetry breakings, beginning from a near-uniform ball of cells of nearly equal potency (Turing, 1952; Wolpert, 1969). In each case the featureless, high-symmetry state is disturbed, and form is what the disturbance leaves.

What the disturbance leaves is not arbitrary. When symmetry breaks it can reconstitute or continue to break down; when it reconstitutes it re-forms carrying the properties of what forced it to rearrange. This is documented in high-harmonic generation, where breaking a system's symmetry opens pathways to harmonics forbidden under the parent symmetry, belonging to the combined system rather than either component (Paper 41). The field is broken by what enters it and reforms from that meeting — relaxing back toward the high-symmetry state, or settling into a new configuration that carries the incoming form forward.

Where a new form propagates, there is a measured mechanism. A small seed of order recruits the less-ordered material next to it into its own arrangement and extends the form: in crystallization, fluctuations of bond-orientational order act as seeds of nucleation and determine which structure forms from them (Russo & Tanaka, 2012). An ordered domain orders what is adjacent to it — form propagating through adjacency.

Proposed. Adjacency theory holds that this cycle — a high-symmetry field, broken by what moves into it, reforming to carry that meeting forward — is a general route by which forms arise and continue. The high-symmetry oscillation is the attractor state a system rests in and returns to; what is adjacent, moving in, is what breaks it; and the reformed state is the new form, itself an attractor that can oscillate, recognize, and be met again. What remains to be shown is whether this describes form-generation in living systems beyond the physical cases where each step is separately established. One documented thread: in oscillator ensembles with a gradient of natural frequencies, the fastest becomes the pacemaker and entrains the rest (Radicchi & Meyer-Ortmanns, 2006) — a disturbance in the field organizing the whole.

7. Two Selectors, One Substance

Natural selection and design have been treated as opposing accounts of the persistence of form. Here they are not opposed; they are the same process described from two positions. Darwinian selection is adjacency resolved by what survives — the external, after-the-fact filter. Intrinsic selection is adjacency resolved by what is moved toward or what resonates — the event at the moment of coupling.

On this account selection is intrinsic — energy resolving adjacency — rather than an external filter, and not a designer standing outside imposing form.

Sensing is a system reading what is adjacent to it — the membrane sensing its field, the oscillator sensing another's phase, the cell sensing a gradient. To sense is to register the adjacent and be changed by it. Intelligence in selection is not mysticism added on top of physics; it is a system sensing what it is adjacent to and resolving accordingly.

This is not "intelligent design": there is no designer outside the physics. It is intelligent selection as an intrinsic property of energy resolving adjacency, wherever two energetic systems meet.

8. What This Competes With, and For

Natural selection is not a theory of where form comes from. It is a theory of what happens to form once it exists — differential survival of heritable variation. Darwin took variation as given and explained its retention; the origin of the variation he bracketed. The Modern Synthesis filled that bracket with "random mutation," which says variation is not foresighted but does not say what generates the shapes that appear to be selected.

That bracket is the territory this theory claims. Adjacency theory does not compete with selection at selection's own job — differential survival is real. It competes for the origin and structuring of form, which selection was never a theory of. The thesis: selection operates on forms already shaped by adjacency at boundaries; variation is not isotropic but produced and biased by how things come into contact. Selection acts on forms that adjacency has already generated, rather than generating those forms itself. This is a genuine rivalry with strict Darwinism, which requires variation to be effectively undirected.

9. What This Theory Claims

Established.
- Across documented physical systems, the acting apparatus works on, at, or across something adjacent; the outcome is carried by the relation, not by either part alone.
- Recognition and merger are separable steps in at least one measured biological system (gamete recognition: IZUMO1/JUNO).
- Coupled oscillators phase-lock at a threshold (Kuramoto); below critical coupling, no locked form. Pacemaker synchronization is mutual, not master-clocked.
- Disrupting the Delta-Notch coupling between cells in the vertebrate segmentation clock lengthens the clock period and increases segment length to match: coupling changed, morphology changed, with no altered gene and no external cue (Herrgen et al., 2010).
- Form follows resonance at a boundary in measured physical systems (Chladni, Faraday, high-harmonic generation).
- Form arises by spontaneous symmetry breaking of a high-symmetry, homogeneous state in both physical and biological systems (crystallization; morphogenesis), and an ordered seed templates adjacent material to propagate the form (Russo & Tanaka, 2012).
- The same genotype produces distinct morphologies depending on the conditions present during development — developmental plasticity, and its discrete form, polyphenism (Lafuente & Beldade, 2019; Nijhout, 2003).
- In temperature-dependent sex determination the genome carries no sex chromosomes, and the sex of the animal is set by nest temperature during a specific developmental window (Bull, 1980). Caste in social insects (queen versus worker on one genome) and the solitary-versus-gregarious phases of locusts are likewise set by what is present during a formative window, not by the genotype alone.
- At hydrothermal vents, life runs on chemosynthesis: microbes fix carbon using the vent's chemical gradients rather than sunlight, and the animals there take their form from that chemistry, structurally built around the condition they live on (Cavanaugh et al., 1981).

Proposed.
- Adjacency is the acting principle of coming-into-being for the cases named — the relation, not either side, does the work.
- Selection by resonance is a form-generating event upstream of Darwinian selection: it selects which form arises, not which persists.
- Selection is intrinsic to energy resolving adjacency, describable as attractor dynamics with no chooser; whether to call this "intelligent," and what the word would mean, is left open (Section 2).
- A high-symmetry field, broken by what moves into it, reforms to carry that meeting forward; this break-and-reform cycle is proposed as a general route by which forms arise and continue.
- Form is co-authored by what is adjacent during the formative window, not fixed by the program alone. The condition that makes this possible is permeability: a boundary open during the window, so that what is adjacent can cross in. The same condition is proposed to hold for thought-forms, where a mind without precondition is a permeable boundary and the precondition is what seals it.

The falsification edge.
- If becoming is energy resolving adjacency, the theory forbids becoming with no gradient and no coupling. No pull, no phase-lock, no lean, no form. Pure randomness with no energetic relation should produce no form. The Kuramoto threshold is one quantified instance — a floor on coupling.
- No resonant form arises in an overdamped medium. Above critical damping (ζ > 1) a system relaxes to equilibrium without oscillating, so no self-propagating form should emerge there however hard its components are forced together. This is a ceiling on damping, distinct from the coupling floor above.
- No co-authoring of form when the boundary is sealed during formation, or when the adjacent cue arrives outside the formative window. Present the cue too late, or to a closed boundary, and the form that depended on it should not appear; conversely, identical starting material in different surroundings during the window should yield different morphologies.
- A form under a genuine boundary condition imposed during formation cannot persist unchanged: it changes or it ceases. The theory forbids the third option — remaining the same and enduring — where the boundary is a real meeting of two states, not merely any adjacency.

10. The Condition

The theory forbids the form being fixed by the thing's own program independent of what is adjacent during formation. Where the surroundings during the formative window differ, the morphology should differ from identical starting material; remove the adjacent cue, or present it once the window has closed, and the form that depended on it should not appear. This is grounded in cases where the genome demonstrably does not carry the outcome: temperature-dependent sex determination, where nest temperature during a window sets the sex of an animal with no sex chromosomes (Bull, 1980); caste in social insects, set by feeding during a developmental window; and the solitary-versus-gregarious phases of locusts, set by the density of what is adjacent. Same starting material, different surroundings during formation, different form. Strict gene-centric selection treats the genotype as the specification and the surroundings as noise, or as a filter acting on already-formed variants; this forbiddance denies that, and is falsifiable in the strong direction — a case where the surroundings vary through the window yet the morphology is invariant and fully genome-specified would break it.

What makes the forbiddance possible is permeability: the boundary has to be open during the window for anything adjacent to write into the form. When it is sealed, the program runs untouched and nothing is co-authored. Biology gives this a concrete face. Many biological oscillators are temperature-compensated — they hold their period nearly steady and actively cancel the effect of temperature, where uncompensated reactions would run two to three times faster per ten degrees. A compensated system is one whose boundary is sealed to that cue. The formative window is the interval when such compensation lifts and the boundary becomes permeable to what is adjacent. This is the same boundary that resists in Section 3 and reforms in Section 6, met now in a third condition: open rather than closed. It also reaches the corpus's older language of thought-forms — a mind without precondition is a permeable boundary, ideas adjacent to it crossing in as a thought forms, and the precondition is what seals it. Physical form and thought-form both become what they become because their boundary was open, during formation, to what was adjacent.

The authoring variable is the coupling, not any particular cue. Temperature is only one thing a window can admit; crowding, feeding, and density do the same work in caste and locust phase, and where a form is coupling-authored directly, as segment length is in the segmentation clock (Section 5), no external cue is needed at all. This is why the theory does not rest on temperature: it is one accessible test among several, not the foundation. It is a convenient test because its transduction is turning out to be ionic — temperature appears to act through TRP channels and intracellular calcium rather than through a dedicated gene (Castelli et al., 2020) — which places the cue inside the same bioelectric layer the coupling works in. The prediction that follows is testable, and not one we found already run: an environmentally set fate should be redirectable during its window by changing the bioelectric coupling rather than the cue, and the window itself should coincide with a measurable lifting of compensation.

This does not close the theory's gap with its neighbors; it moves it. Against strict gene-centric Darwinism the theory now forbids something real. But developmental plasticity and the Extended Evolutionary Synthesis already hold that surroundings during development are instructive rather than only selective (Laland et al., 2015), and physical forces shaping form is an old line — D'Arcy Thompson (1917). Kauffman's adjacent possible maps the reachable next-states; assembly theory (Sharma, Walker, Cronin et al., 2023) formalizes construction from what already exists; Whitehead's process philosophy (1929) holds that interaction is prior to the things. What remains distinctively this theory's is not the observation that surroundings instruct form — biology has that — but a narrower, testable claim: that within the coming-into-being of biological form, permeability during a window, coupling, and the break-and-reform cycle are the same process, and that selection by it happens at the moment of formation rather than only afterward by survival. The theory does not claim this is the same mechanism as physical form-generation at other scales. That a similar structure — two different systems, a differential between them, a third thing arising in the crossing — recurs from the molecular to the planetary is a structural pattern, not a causal one, set out separately (Paper 8). Whether the biological claim predicts anything the neighbors do not is the next thing to test: study the near-misses, Thompson first, to learn why each did not hold, which names the exact objection this version must survive.

The furthest reach, stated as a reach and not a claim: if form is authored by a difference held across a boundary, that principle points back before biology. In cells, chemiosmotic coupling — an electrochemical gradient of protons across a membrane — drives both energy metabolism and the direct fixation of carbon into organic form (Mitchell, 1961), and it is as universally conserved as the genetic code. On a leading but contested hypothesis, this gradient was not first built by life but found: alkaline hydrothermal vents hold natural proton gradients across thin mineral walls whose iron-sulfur catalysts resemble the cofactors of modern metabolic enzymes — a difference across a boundary already doing chemical work before any cell existed (Lane et al., 2010; Martin & Russell, 2007; Lane, 2017). The hypothesis is disputed, including on whether the gradients were strong enough at vent temperatures. The paper does not claim it. It marks it as where the mechanism — a difference across a boundary authoring form — would extend if the origin turns out to work this way: genesis, in the abstract's sense, beginning before the form.

References

Gamete recognition and membrane fusion
- Bianchi, E., Doe, B., Goulding, D., Wright, G.J. (2014). "Juno is the egg Izumo receptor and is essential for mammalian fertilization." Nature 508, 483–487.
- Ohto, U. et al. (2016). "Structural and functional insights into IZUMO1 recognition by JUNO in mammalian fertilization." Nature 534, 566–569.
- Inoue, N., Hagihara, Y., Wright, D., Suzuki, T., Wada, I. (2015). "Oocyte-triggered dimerization of sperm IZUMO1 promotes sperm–egg fusion in mice." Nature Communications 6, 8858.
- Aydin, H. et al. (2016). "Molecular architecture of the human sperm IZUMO1 and egg JUNO fertilization complex." Nature 534, 562–565.

Coupled oscillators, entrainment, synchronization
- Kuramoto, Y. (1984). Chemical Oscillations, Waves, and Turbulence. Springer.
- Winfree, A.T. (1967). "Biological rhythms and the behavior of populations of coupled oscillators." Journal of Theoretical Biology 16, 15–42.
- Peskin, C.S. (1975). Mathematical Aspects of Heart Physiology. Courant Institute, NYU.
- Jalife, J. (1984). "Mutual entrainment and electrical coupling as mechanisms for synchronous firing of rabbit sino-atrial pacemaker cells." Journal of Physiology 356, 221–243.
- Radicchi, F. & Meyer-Ortmanns, H. (2006). "Reentrant synchronization and pattern formation in pacemaker-entrained Kuramoto oscillators." Physical Review E 74, 026203.
- Herrgen, L., Ares, S., Morelli, L.G., Schröter, C., Jülicher, F., Oates, A.C. (2010). "Intercellular coupling regulates the period of the segmentation clock." Current Biology 20, 1244–1253.

Morphology from resonance at boundaries
- Chladni, E.F.F. (1787). Entdeckungen über die Theorie des Klanges. Leipzig.
- Faraday, M. (1831). "On the forms and states assumed by fluids in contact with vibrating elastic surfaces." Philosophical Transactions.

Theoretical context and near-misses
- Thompson, D'Arcy W. (1917). On Growth and Form. Cambridge University Press.
- Kauffman, S.A. (2000). Investigations. Oxford University Press. (the adjacent possible)
- Sharma, A., Czégel, D., Lachmann, M., Kempes, C.P., Walker, S.I., Cronin, L. (2023). "Assembly theory explains and quantifies selection and evolution." Nature 622, 321–328.
- Whitehead, A.N. (1929). Process and Reality. Macmillan.
- Laland, K.N. et al. (2015). "The extended evolutionary synthesis: its structure, assumptions and predictions." Proceedings of the Royal Society B 282, 20151019.

Symmetry, phase transitions, and morphogenesis
- Brézin, É. "Spontaneous Symmetry Breaking." Inference: International Review of Science. (The high-symmetry phase is the liquid; the ordered phase is broken symmetry.)
- Russo, J. & Tanaka, H. (2012). "The microscopic pathway to crystallization in supercooled liquids." Scientific Reports 2, 505.
- Turing, A.M. (1952). "The chemical basis of morphogenesis." Philosophical Transactions of the Royal Society B 237, 37–72.
- Wolpert, L. (1969). "Positional information and the spatial pattern of cellular differentiation." Journal of Theoretical Biology 25, 1–47.

Developmental plasticity and polyphenism
- Lafuente, E. & Beldade, P. (2019). "Genomics of developmental plasticity in animals." Frontiers in Genetics 10, 720.
- Nijhout, H.F. (2003). "Development and evolution of adaptive polyphenisms." Evolution & Development 5, 9–18.
- Bull, J.J. (1980). "Sex determination in reptiles." Quarterly Review of Biology 55, 3–21.
- Castelli, M.A., Whiteley, S.L., Georges, A., Holleley, C.E. (2020). "Cellular calcium and redox regulation: the mediator of vertebrate environmental sex determination?" Biological Reviews 95, 680–695.

Cell fate as attractor states
- Kauffman, S. (1969). "Homeostasis and differentiation in random genetic control networks." Nature 224, 177–178.
- Huang, S., Eichler, G., Bar-Yam, Y., Ingber, D.E. (2005). "Cell fates as high-dimensional attractor states of a complex gene regulatory network." Physical Review Letters 94, 128701.
- Wang, J., Zhang, K., Xu, L., Wang, E. (2011). "Quantifying the Waddington landscape and biological paths for development and differentiation." PNAS 108, 8257–8262.
- Ferrell, J.E. (2012). "Bistability, bifurcations, and Waddington's epigenetic landscape." Current Biology 22, R458–R466.
- Moris, N., Pina, C., Martinez Arias, A. (2016). "Transition states and cell fate decisions in epigenetic landscapes." Nature Reviews Genetics 17, 693–703.
- "Attractors are less stable than their basins: canalization creates a coherence gap in gene regulatory networks." bioRxiv (2025).

Vent chemistry, chemosynthesis, and chemiosmosis
- Cavanaugh, C.M., Gardiner, S.L., Jones, M.L., Jannasch, H.W., Waterbury, J.B. (1981). "Prokaryotic cells in the hydrothermal vent tube worm Riftia pachyptila: possible chemoautotrophic symbionts." Science 213, 340–342.
- Mitchell, P. (1961). "Coupling of phosphorylation to electron and hydrogen transfer by a chemi-osmotic type of mechanism." Nature 191, 144–148.
- Lane, N., Allen, J.F., Martin, W. (2010). "How did LUCA make a living? Chemiosmosis in the origin of life." BioEssays 32, 271–280.
- Martin, W., Russell, M.J. (2007). "On the origin of biochemistry at an alkaline hydrothermal vent." Philosophical Transactions of the Royal Society B 362, 1887–1926.
- Lane, N. (2017). "Proton gradients at the origin of life." BioEssays 39, 1600217.

FLUX papers referenced (prior instance, not source)
- Paper 41 — Breakthrough: Symmetry at the Boundary (reconstitution and symmetry breaking; high-harmonic generation; Chladni; oscillatory coupling; the two-selectors reconciliation).
- Paper 50 — Transformation (field vs mechanism; membrane potential as boundary condition).
- Paper 40 — Boundaries (differentiation at the edge between energy types).
- Paper 8 — As Without So Within (the structural pattern of two systems, a differential, and a third state; explicitly structural analogy across scales, not causal connection — the wider cross-scale claim this paper does not itself make).
- Paper 7 — What Is Life For? (somatic evolution; the nacre-zebrafish case in which a nonheritable somatic mutation plus local cell-cell interaction recreates adaptive form without the germline — Majic et al., 2022).
- Paper 27 — Becoming; Paper 9 — Transient Systems / beyond strict Darwinism.

ΑΩ ad infinitum ∞