Open Gaps

Is the total coherence C0 a free parameter or fixed by self-consistency? Without loss of generality, one may normalize C0 = 1 for the abstract theory; the physical value of C0 (if any) would be determ

A more natural formalization may use a functor C: mathbfSub(H) R 0 from the category of subsystems to non-negative reals, with conservation as a constraint on natural transformations.

The total coherence C0 = S(rhototal) depends on the global state. Whether C0 is a free parameter or determined by self-consistency (the bootstrap fixed point) remains open — see [Bootstrap Mechanism](

Axiom 1 is also satisfied by Rényi entropies Salpha(rho) = (1-alpha)-1logTr(rhoalpha) for alpha in (0,1) (strong subadditivity holds in this range). Whether the framework selects von Neumann (alpha =

The σ-algebra formulation (Axiom 1, conditions C1–C5) and the Hilbert space formulation (C = langlepsi|psirangle) operate at different levels. The former concerns subsystem structure; the latter conce

Environmental perturbations increase epsilon over time, eventually breaking approximate closure. A quantitative decoherence rate should follow from the perturbation spectrum acting on the coherence me

The formalization assumes U(1) (abelian) symmetry. Non-abelian internal symmetries (SU(2), SU(3)) require replacing the single period T with a representation-theoretic condition on the image of phi in

Photons have no rest frame and no rest-frame loop. They are limiting cases where TO 0 and omegaO while SO remains finite. This limit needs formal treatment within the approximate closure framework.

The binary self/non-self partition is an idealization. A generalization to B: Aut(H)|Sigma [0,1] (degree of threat) is physically motivated but not developed.

Prove that the abstract bootstrap equation U cong R(U,U) admits a geometric realization as a substitution tiling in Rd. This requires constructing an explicit functor from the observer category to a t

Determine which n is selected by the multi-scale self-consistency condition (Gravitational Coupling, Theorem 12.6). The golden mean (n = 1) is the simp

Derive the mutual information cost function from the axioms rather than assuming a Gaussian profile. This would fix alpha(betan) numerically. [Lagarias, 1999]: /references#lagarias

A complete proof that L is the unique Lagrangian consistent with all three axioms, not merely the simplest. This requires classifying all possible terms consistent with the derived symmetries.

The coherence potential allows a constant term V0 (the cosmological constant). Its value should be derivable from the coherence geometry but is not — this connects to the [Cosmological Constant](/deri

The functional integral measure Dphi is not rigorously defined. The coherence framework may provide a natural regularization via the discrete relational invariant network, but this is not yet formaliz

The quartic restriction (Theorem 2.2c) holds at tree level; loop corrections generate higher-dimensional operators suppressed by powers of the cutoff. The bootstrap hierarchy structure should organize

The derivation focuses on scalar fields. Extending to spinor fields requires the Fisher metric on the spinor state space, which should connect to the Dirac Lagrangian psi(igammamu Dmu - m)psi.

The derivation argues that the joint constraint (smooth manifold + aperiodic tiling) is selective, but does not characterize the solution space. The mathematical problem: for which smooth Riemannian m

Even if the compatibility condition is selective, it might admit multiple solutions (multiple manifold-network pairs satisfying all constraints). Whether the axioms + aperiodic order + Lagrangian uniq

The pair is symmetric by construction. The observed matter-antimatter asymmetry (baryogenesis) must arise from dynamical processes that break the symmetry of pair creation — this is a question about w

The process by which virtual pairs become real (separate and propagate) needs the interaction type classification and the spacetime geometry to be quantitative.

Theorem 7.2 proves 3 (pairs are insufficient). Corollary 7.3 shows the bootstrap propagates this into a network. The exact minimum cardinality of a self-consistent observer network remains open — it d

The pair (O1, O2) must be dynamically stable — neither observer should dissolve the other immediately. This stability condition may constrain the relative coherence allocation C(O1)/C(O2).

Can the pair be asymmetric (C(O1) C(O2))? If so, the asymmetry introduces a direction in coherence space — possibly connecting to charge conjugation asymmetry.

The minimal observer has GO = U(1). The next-simplest observers would have GO = SU(2) (spin structure) or GO = U(1) U(1) (multiple charges). Classifying the hierarchy of observer complexity connects t

The coherence cost SO is bounded below by Smin. Whether the allowed values form a discrete spectrum (quantized action) depends on the topology of the coherence space — this connects to the dimensional

A categorical framework (e.g., using the theory of composition algebras over monoidal categories) might make the Cayley-Dickson necessity even more transparent and provide an independent mathematical

The derivation identifies 4 levels (R, C, H, O) with 4 types of interaction (identity, pairwise, triple, quadruple). Making precise the correspondence between "number of interacting observers" and "Ca

The connection between octonionic non-associativity and color confinement (Proposition 8.1) is structural but not quantitative. A rigorous confinement proof from the octonionic structure would be a ma

The rate of relational invariant generation per interaction determines the cosmological timeline of complexity. This connects to the entropy derivation and the thermodynamic arrow.

Not every relational invariant generated will be stable. The persistent hierarchy consists of those relational invariants whose loops close stably. The fraction of stable relational invariants is an i

Proving Conjecture 7.1 requires establishing Scott continuity of R and identifying the appropriate category of coherence spaces. See §The Bootstrap Fixed-Point Conjecture above.

Proving Conjecture 7.2 requires a contraction argument or a rigidity result showing the constraints from Axiom 1 (conditions C1–C5) plus the three axioms admit only one self-consistent solution.

Promoting R to a full functor on morphisms (§Remark after Proposition 5.1) would enable a geometry functor G: mathbfObs mathbfGeom mapping each observer's epistemic horizon to an effective geometr

The identification of I12 with quantum entanglement needs a precise mapping between C(I12) and entanglement entropy S = -Tr(rhoA ln rhoA).

How many relational invariants does a given Type III interaction produce? Likely one per independent component of I12, but this needs the dimensionality of V.

The classification is kinematic (what outcomes are possible). The dynamics (which type occurs, with what probability) requires the Born rule and the full quantum formalism.

At what energy does Type I give way to Type II? The threshold likely depends on the coherence content of the observers relative to their relational coherence. Similarly, what determines whether a comp

The classification assigns a single type per interaction event. Whether superpositions of interaction types are physical (e.g., an interaction that is partly Type I and partly Type III) depends on the

Proposition 7.5 establishes the coherence accounting for decoherence but does not give a rate. The timescale depends on the coupling strength between the pair and the surrounding observers, and on the

Which composites are stable and which decay? The framework predicts that stability requires exact loop closure of the composite (epsilon = 0), but the conditions under which a composite's closure para

The coherence Lagrangian should be uniquely derivable from C and the observer structure. The Fisher information metric is a natural candidate. This is the key missing link between the abstract framewo

The existence of a minimum action quantum hbar implies that admissible observer cycles have quantized action nhbar for n in Z 1. This should connect to the quantization of energy levels in bound syste

The relationship between hbar (coherence cost quantum), c (phase propagation speed from Speed of Light), and G (gravitational coupling) determines whether the

The Jarzynski equality langle e-beta Wrangle = e-beta Delta F and Crooks fluctuation theorem describe the probability of entropy-decreasing fluctuations. These should arise as finite-size corrections

Living systems locally decrease their entropy by expanding their coherence domains through structured interactions. The framework predicts this is possible because entropy is observer-relative — what

The von Neumann entropy S = -tr(rho ln rho) should be derivable as the inaccessible coherence when A's access is limited to a subsystem of an entangled state.

Recovering the spacetime metric from the partial order requires a volume measure (event counting). This is the central open problem of causal set theory.

The derivation gives a single partial order. Quantum mechanics suggests superpositions of causal orders may be physical (indefinite causal structure). The framework should address this.

The structural arrow (increasing d(v)) is local. The global cosmological arrow (expansion) may require boundary conditions on the fixed-point solution. [Bombelli et al., 1987]: /re

This derives dspace = 3. The uniqueness of dtime = 1 follows from the partial order structure of Time as Phase Ordering — a partial order defines a single ordering

Could extra dimensions exist but be compactified at scales below ellP? The framework's conditions apply to the effective dimensionality experienced by observers. If compact dimensions are below the

The total spacetime dimension is 4 — the unique dimension with exotic smooth structures. The spatial dimension is 3 — the unique dimension where this exotic pathology is absent. Whether this is coin

The value of Lambda — the deepest open problem in theoretical physics — should in principle be computable from the coherence geometry of the substrate. The observed value Lambda sim 10-122 in Planck u

Is Newton's constant derivable from the coherence geometry, or is it an independent parameter? If derivable, the framework has zero free gravitational parameters.

The full quantum treatment requires quantizing the coherence geometry itself. The Einstein equations are the classical (continuum) limit; the discrete relational network is the quantum substrate.

Constructing the energy-momentum tensor explicitly from the relational invariant density and observer distribution would close the self-consistency loop at the formal level.

The determination of G reduces to proving that the bootstrap fixed-point equation U cong R(U,U) has a unique solution (Bootstrap Mechanism, Conjectures 7.1–7.2).

Prove that the geometry constituted by the first Type III interactions is independent of which observer pairs interact first. This is the "all observers must agree" condition formalized as constitut

Construct a well-posed dimensionless curvature comparison between the Fisher geometry on Sigma and the spacetime geometry on M (avoiding the dimensional obstacle of Proposition 6.2). This is equivalen

Pin down the precise dimensionless O(1) coefficient in G = alpha ellmin2 c3/hbar. The fixed-point analysis (Theorem 11.4) gives alpha = c/2 (i.e., 1/2 in natural units), within a factor of 2 of the Be

The Gaussian profile f(x) = e-x2/2 used in Proposition 10.3 is motivated but not derived from axioms. Rigorous derivation from the Fisher metric on Sigma pulled back to the causal boundary would tight

The distinction between topological S1 (pre-geometric) and Riemannian S1 (geometric) at t0 (Proposition 11.1) is clear conceptually but would benefit from a categorical formulation: the condensation a

Prove rigorously that the multi-scale self-consistency condition (Theorem 12.6) is genuinely non-degenerate — i.e., that the inter-observer distance distribution has non-trivial scaling under substitu

Determine which metallic mean index n (and corresponding inflation factor betan) is selected by the multi-scale renormalization-group fixed point. This is a well-defined mathematical problem: for whic

Formalize the argument that the axiom constraints (C5 non-triviality + Axiom 2 individuation + no-boundary + constitutive universality) function as matching rules that force aperiodicity. Currently Pr

Is G derivable from hbar and c, leaving the framework with zero free parameters?

(partially resolved — downstream): The singularity at r = 0 is addressed by Singularity Resolution, which establishes curvature bounds at Planck dens

(partially resolved — downstream): Black hole singularities are resolved by Singularity Resolution (regular cores). Full discrete theory for interior

(partially resolved — downstream): This derivation covers inertial (constant velocity) observers. Accelerated observers require curved coherence geometry — connecting to [Gravity](/derivations/space

The modified Friedmann equation uses (1 - rho/rhoP) as the leading-order correction. The exact form, including sub-leading terms, should be derivable from the coherence Lagrangian ([Coherence Lagrangi

Does a Planck-density core eventually re-expand (Planck star), remain static (remnant), or evaporate completely? The answer depends on the dynamics at rho sim rhoP and the interaction between Hawking

The bounce may produce observable signatures in the CMB (pre-bounce perturbations surviving through the bounce). The spectrum of these perturbations — scale-invariant, blue-tilted, or otherwise — depe

The regular interior likely approaches a de Sitter geometry (constant positive curvature) near rmin. Deriving this from the framework would connect singularity resolution to the cosmological constant.

Whether c is independently determined or derivable from the other fundamental constants is a key open question. The three constants hbar, c, G may be reducible to fewer independent structural paramete

The framework should derive which massless observers exist and their properties (spin-1 for photons, spin-2 for gravitons). This requires the spin-statistics connection applied to the L = cT limiting

The Minkowski metric determines the causal structure (light cones). The framework should show that this causal structure is equivalent to the partial order prec on G in the continuum limit — connectin

Gleason's theorem fails for d = 2. The framework's direct derivation (Theorem 6.1) works for all d 2, providing coverage where Gleason does not. Whether qubits in nature are always embedded in higher-

Extension to continuous spectra (dP = |psi(x)|2 dx) follows from the same arguments in the continuum limit, using the measure-theoretic version of coherence conservation.

Explore whether coherence conservation imposes fundamental limits on or structures for quantum error-correcting codes.

Extend beyond the bipartite case to full multipartite classification (W-states, cluster states, SLOCC classes).

Derive entanglement growth under unitary evolution and the scrambling time from coherence dynamics.

The no-go theorem constrains theories that simultaneously assume (i) quantum mechanics applies universally, (ii) measurement has single outcomes, (iii) reasoning about others' measurements is valid. T

When multiple observers independently measure the same system, they obtain consistent results. The framework should derive this from mutual consistency of relational invariants IO1 S, IO2 S, ldots whe

Weak measurements correspond to Type III interactions that generate relational invariants with small coherence content C(IOS) ll C(S). Continuous measurement is the limit of many weak Type III interac

When many observers O1, ldots, On independently perform Type III interactions with S, each generating IOi S, strong subadditivity (Theorem 2.1) constrains all descriptions to be mutually consistent. A

The Kochen-Specker theorem shows that non-contextual hidden variable models are impossible. This is closely related to Theorem 5.1 (no universal definiteness) but approaches from a different direction

The Frauchiger-Renner no-go theorem constrains theories with certain assumptions about nested observers. The framework should be formally tested against this theorem — the three-level structure may pr

The framework naturally produces discrete outcomes at the fundamental level — relational invariants have discrete spectra from the U(1) loop structure (Loop Closure

The Sheaf Structure derivation resolves the qualitative question: the observer network carries three sheaves (coherence, probability, outcome) with a s

The explicit map Hint IOS from the physical interaction to the relational invariant is needed for concrete predictions.

The Kochen-Specker theorem shows that quantum observables cannot all have simultaneous definite values. This should follow from the relational-invariant mechanism: each measurement context generates a

Extension to position, momentum, and other continuous-spectrum observables via spectral measures.

For partial (weak) Type III interactions, the relational invariant is not fully generated, and the system is left in a superposition of eigenstates with small disturbance. This should connect to the w

— The structural parallel between the observer sheaf O and the Abramsky-Brandenburger empirical model presheaf is compelling but not yet a formal isomorphism. Establishing this requires: (a) mapping r

— The current analysis works for discrete outcome spaces. For continuous spectra, the stalks become infinite-dimensional and the cohomology theory needs refinement (e.g., sheaves of topological spaces

— We've focused on H1 (gluing obstructions), but H2 and higher may carry physical information. In gauge theory, H2 classifies gerbes (higher gauge fields). Whether H2(G, O) has a physical interpretati

The teleportation channel can be repurposed for quantum key distribution (BB84, E91). Derive the security of QKD from coherence conservation — specifically, that any eavesdropper must create a relatio

Extend from qubits to continuous-variable systems (Braunstein-Kimble protocol). The relational invariants become continuous, and the Bell measurement becomes a homodyne detection. The coherence accoun

Formalize the resource-theoretic aspects: entanglement as the resource, classical communication as the catalyst, and coherence conservation as the resource monotone. This connects to the broader resou

While the theorem allows individual CP violation (Corollary 4.3), the framework should derive the specific mechanism — complex phases in the CKM and PMNS matrices — from the flavor structure ([Three G

The prediction m = m and tau = tau can be tested with increasing precision. Current best tests: |mK - mK|/mK < 10-18 (kaon system), |qp + qp|/e < 10-12 (proton-antiproton charge ratio). Any violation

Does CPT extend to the gravitational sector? The coherence Lagrangian includes gravity (Einstein Equations), so the theorem formally applies. However, the

Can the framework predict specific particle masses, or only the hierarchical structure? Computing the electron mass from the coherence geometry would be a breakthrough.

The values of gk at each level should be derivable from the structure of the coherence geometry. Currently they are empirical inputs.

If dark matter is a stable crystallization at an intermediate scale, its mass should be derivable. This connects to Dark Matter Granularity.

The vacuum energy (cosmological constant) is anomalously small (sim 10-122 in Planck units). Whether the crystallization framework can explain this extreme hierarchy is an open challenge.

Step 7 identifies the qualitative decomposition Delta cn = Delta cntopo + Delta cnstruct. Computing the topological contribution from the known particle content (division algebra structure, three gene

The specific values of m1, m2, m3 are not predicted — only the ordering and approximate scale. Computing the individual masses requires the precise Yukawa couplings from the winding geometry.

The PMNS matrix for Majorana neutrinos contains two additional CP-violating phases (alpha1, alpha2) beyond the Dirac phase delta. These should be computable from the A5 breaking pattern of [Flavor Mix

The heavy right-handed neutrinos (MR sim v) could be produced at colliders (unlike GUT-scale seesaw where MR sim 1014 GeV). Collider signatures should be analyzed.

If experiments conclusively establish Dirac neutrinos (absence of 0nubetabeta), this derivation would be falsified — the self-conjugacy argument would need revision.

The full Fermi-Dirac distribution langle nk rangle = 1/(e(epsilonk - mu)/kBT + 1) should be derivable from the exclusion principle (each state occupied by 0 or 1 fermion) plus the entropy framework ([

Lieb and Thirring (1975) proved that the stability of ordinary matter (energy extensive in particle number) requires the Pauli exclusion principle. This should be connected to the framework's structur

Why is the minimal fermion spin-1/2 and not spin-3/2? The answer is that s = 1/2 is the fundamental (lowest-dimensional) representation of SU(2), and the minimal observer has the simplest possible loo

Which spin values are realized at each level of the bootstrap hierarchy? Spin-1 gauge bosons and spin-2 gravitons should emerge at specific levels — this connects to the gauge structure derivation.

The prediction is that no superpartner exists at any energy scale, not merely above the current LHC reach. Future colliders testing higher energies provide continued tests.

Could an approximate algebraic relation between bosonic and fermionic sectors arise dynamically, even though exact SUSY is forbidden? Such an "accidental SUSY" would be broken by construction and migh

In approaches where supersymmetry is a mathematical framework (string theory, supergravity), does the topological no-go theorem constrain which mathematical structures have physical realizations? [Diaconis & Shahshahani, 1987]: /references#diaco

The electric charge e (or equivalently alphaem = e2/(4pivarepsilon0hbar c) 1/137) is a free parameter. Its value should ultimately follow from the [Coupling Constants](/derivations/cosmology/coupling-

This derivation gives classical Maxwell equations. The quantized theory (QED) requires applying the Born Rule to the gauge field: the photon is the quantum of Fmunu,

Computing v 246 GeV from the coherence Lagrangian and bootstrap hierarchy. This requires Coherence Lagrangian.

The value lambda 0.13 (determining mh = 125 GeV) is not predicted — it depends on the shape of the coherence potential near the crystallization.

The approximate SU(2) custodial symmetry protecting rho = mW2/(mZ2cos2thetaW) 1 should follow from the quaternionic structure but is not explicitly derived.

The cosmological electroweak phase transition (first-order vs. crossover) depends on the detailed dynamics of the crystallization, relevant for Baryogenesis.

While proton decay is forbidden, neutron-antineutron oscillation (Delta B = 2) might occur through non-perturbative effects. The framework should determine whether B violation by 2 units (without lept

When a proton falls into a black hole, is baryon number preserved? The information paradox resolution (Information Paradox) suggests yes (no information

The estimate taup sim 1064 years is parametric. A precise calculation would require the non-perturbative gravitational path integral, which is not available. The causal set statistics ([Causal Set Sta

The Cell(6) decomposition (Proposition 4.1) correctly reproduces SM quantum numbers using published mathematics, but the derivation from the framework's own bootstrap axioms — showing why the bootst

The current algebraic construction cleanly produces U(1) SU(3) quantum numbers. Incorporating the SU(2)L weak isospin assignments requires combining the Cell(6) structure with the quaternionic chirali

Formalize the argument that octonionic gauge bundles admit only topologically trivial SU(3) connections. This may connect to the theory of G2-instantons on manifolds with G2 holonomy.

Characterize the moduli space of SU(3) instantons within the G2 framework. If the moduli space is empty (or consists only of the trivial connection), the argument is complete.

Check whether other non-perturbative effects (monopoles, domain walls) are also constrained by the octonionic structure.

The fact that thetaQCD = 0 from non-associativity and thetaW is unphysical from standard arguments suggests a deeper connection between the associative/non-associative split and the strong/electroweak

gW is a free parameter, related to alphaem via gW = e/sinthetaW. Its value should follow from the Coupling Constants derivation. Same status as e in electr

The coefficient is currently established by the gravitational stability argument (Theorem 5.1), which uses the Schwarzschild geometry — itself derived from the axioms through the Einstein equations ch

The derivation assumes a spatial region at a moment of time. A covariant formulation would bound the entropy on arbitrary spacelike surfaces — connecting to the Bousso covariant entropy bound.

The derivation assumes nothing meaningful happens below ellP. If the coherence geometry has sub-Planckian structure, the counting argument needs modification.

For time-dependent regions (e.g., expanding cosmological horizons), the channel capacity argument must be adapted. The entropy bound should track the apparent horizon, not the event horizon.

The coefficient is currently established through the derivation chain: gravitational stability fixes the effective area per bit to 4ellP2 ([Holographic Entropy Bound](/derivations/holography/area-scal

What is the coherence structure inside the horizon? The discrete relational network should provide a model avoiding the classical singularity.

The framework should reproduce S = A/(4ellP2) for Kerr and Reissner-Nordström black holes, explaining why the result depends only on area regardless of spin or charge.

The mapping between relational invariant coherence C(I12) and entanglement entropy SE = -Tr(rho ln rho) needs formalization.

Extremal black holes have TH = 0 but S > 0. The framework should explain this: the horizon still supports minimal observer loops (nonzero entropy) but thermal radiation is suppressed.

The geodesic variance calculation (Proposition 2.2) uses a simplified cell-counting argument. A rigorous derivation should use the Myrheim-Meyer dimension estimator or the Brightwell-Gregory longest-c

All calculations assume flat (Minkowski) background. The corrections from curvature — particularly near black holes or in the early universe — should modify both alphaH and the density fluctuation spe

The qualitative link between holographic noise and dark matter granularity (Theorem 6.1) should be made quantitative: given alphaH, what is the predicted kJ? This requires computing how the sprinkling

Proposition 1.3 assumes Poisson sprinkling as the unique Lorentz-invariant distribution. Can this be derived from the three axioms, or is it an additional input?

The identification of the discrete relational invariant network with a Poisson causal set relies on a continuum limit that has not been rigorously constructed from the axioms. [Bom

The actual spectrum deviates from perfect thermal due to the potential barrier. These corrections should be derivable from the coherence geometry.

What happens at the endpoint of evaporation? A Planck-mass remnant? Complete evaporation? The answer depends on the discrete structure at the Planck scale.

The total luminosity depends on the number of particle species that can be emitted. The framework should predict this from the bootstrap hierarchy.

The Hawking temperature for Kerr (TH = hbarkappa/(2pi c kB) with modified kappa) and Reissner-Nordström black holes should follow from the same loop-breaking mechanism applied to the modified horizon

How quickly does the black hole interior become encoded in the Hawking radiation? The scrambling time ts sim (M/MP)2 tP log(SBH) [Sekino-Susskind, 2008] should be derivable from the rate of relational

The encoding of interior information in radiation correlations should be formalizable as a quantum error-correcting code [Almheiri-Dong-Harlow, 2015]. The relational invariant structure should map ont

The island formula for entropy (S = min ext[A( I)/(4Ghbar) + Smatter(I R)]) should be derivable from the coherence domain structure, with "islands" corresponding to regions where the external observer

The information encoding in Hawking radiation correlations is in principle observable but requires collecting an astronomically large number of quanta. Are there more accessible signatures of the reso

Derive the Maldacena-Shenker-Stanford chaos bound lambdaL 2pi T from coherence conservation and the observer axioms, rather than importing it as an external result.

Connect the inter-sector transition rate (hierarchy barrier crossing) to the Hawking evaporation rate Gamma sim TH2. This should give a derivation of the Page curve from the coherence-sector framework

Characterize the scrambling dynamics for states that do not saturate the holographic bound. The scrambling time should increase as the hierarchy becomes more complex (more levels, tighter matching rul

Make the connection between maximal within-sector mixing and the ER=EPR bridge structure more precise. The complete-graph argument (Step 4) should follow from the ER bridge connectivity derived in [ER

Extend the loop-tilt mechanism (Step 5) to cosmological horizons (de Sitter), Rindler horizons (uniformly accelerating observers), and inner horizons of rotating black holes (Kerr). The de Sitter case

Derive that the coherence cost function must have A5 symmetry, rather than postulating it (S1). This would require showing that the bootstrap dynamics on three winding axes naturally produce icosahedr

Determine which of the five A5 breaking channels is realized in the quark and lepton sectors. This may require input from the gauge structure (how SU(3) SU(2) U(1) interacts with the A5 flavor symmetr

The mixing parameters measured at low energy differ from their values at the symmetry-breaking scale. RG corrections (from Renormalization Group) sho

The observation theta12CKM + theta12PMNS pi/4 may be accidental or may reflect a deeper geometric relationship between the quark and lepton sectors. The A5 framework should clarify this.

Derive the nature (first-order vs. crossover) of the electroweak phase transition from the coherence framework. The Standard Model predicts a crossover (insufficient for baryogenesis); the framework m

Compute the baryon-to-photon ratio from the framework's parameters. This requires the sphaleron rate, CP-violating phases, and phase transition dynamics — all computable in principle but technically d

The framework's dark matter prediction (Dark Matter Granularity) involves coherence structures. Could a dark-sector version of baryogenesis explain the OmegaB /

Compute dlnvol(Gammaacc)/dtau from the bootstrap dynamics and show it matches the observed entropy growth rate. This requires the binding energies at each hierarchy level, which in turn require the fu

The geometric inflation derivation (Geometric Inflation) provides the initial expansion. The relationship between the inflationary epoch and the first hie

In the far future, the universe approaches de Sitter space with constant temperature TdS sim Lambda. At this point, no further hierarchy levels become available (the temperature stops decreasing). Doe

Can the cosmological arrow reverse (in a contracting phase)? The framework predicts no, because contraction would heat the universe, disrupting higher hierarchy levels and reducing Gammaacc — the ac

This derivation claims to resolve Gap 3. The resolution should be verified: does hierarchy elaboration fully account for the cosmological arrow, or are there additional contributions from boundary con

The algebraic ratio constraint alpha1 : alpha2 : alpha3 = 4:2:1 is a structural postulate. Deriving it from the coherence axioms (e.g., showing that the canonical norm on Ai uniquely determines the co

The bootstrap crystallization scales Lambdai set the RG boundary conditions. Deriving their values from the Mass Hierarchy exponential tunneling mechanism woul

Partially addressed for the electroweak sector (Proposition 7.1: 3.3% shift, confirming one-loop reliability). The QCD sector remains problematic — the ratio constraint at a common EW scale does not p

Determining Lambda3 independently from bootstrap dynamics would convert the suggestive near-coincidence 1/dim(O) alphas(MZ) into a genuine prediction. This is the key open question for the strong coup

The fermion masses are free parameters in the Standard Model but should be constrained by the division algebra structure and the Flavor Mixing derivation. This req

The threshold rhoRI gg rhoPl is qualitative. A precise criterion (specific ratio, phase transition vs crossover) would sharpen the predictions. The causal set literature on "manifold-likeness" conditi

Proposition 6.2 claims compatibility with the observed spectral index but does not derive it. Computing ns from the Poisson statistics of the geometric transition would be a strong quantitative test —

In standard inflation, reheating transfers inflaton energy to Standard Model particles. In geometric inflation, the analogous process is the bootstrap crystallization of the gauge hierarchy. The therm

The singularity-resolution derivation provides the bounce; this derivation provides the subsequent expansion. The interface — how the bounce state seeds the pre-geometric network — needs formalization

The substrate picture identifies Omegam as the crystallization fraction but does not compute it from first principles. [Continuous-Discrete Duality](/derivations/foundation/continuous-discrete-duality

This derivation treats the substrate in de Sitter equilibrium. In the early universe, the substrate density evolves from the post-bounce state ([Singularity Resolution](/derivations/spacetime/singular

The holographic entropy bound (Area Scaling) is proved for static boundaries. Extending it to the de Sitter cosmological horizon (which is static in the static

The key gap blocking a tighter bound. What is the minimum coherence content of the non-self side of B required for Lyapunov-stable loop closure? The multiplicity theorem establishes Cnon-self > 0 but

The sign prediction Lambda 0 (Theorem 5.4) does not distinguish Lambda = 0 from Lambda > 0. Does the structural arrow of time (monotonically increasing relational invariant depth) require eternal expa

Theorem 5.2 prohibits the Planck-density bounce in Lambda < 0 FRW cosmologies via coherence conservation. Does the same argument extend to all global recollapse scenarios, including anisotropic cosm

The de Sitter horizon radiates at the Gibbons-Hawking temperature TGH = hbar H/(2pi kB). Whether this thermal background destabilizes observer loops depends on the detailed interaction between GH radi

Step 8 defines the level-indexed quantities (Lambdaneff, S(n)) and the cross-level consistency constraint (Proposition 8.3). Conjecture 8.9 identifies the boundary condition (double saturation). [Cont

Derive the scaling of maintenance cost with hierarchy level ell. If the cost scales as ell hbaromegaell where omegaell is the cycling frequency at level ell, this should connect to Kleiber's law (meta

Compute the dimension of the B-compatible sector as a function of the complexity of B (number of self/non-self distinctions). This would give a quantitative measure of biological non-ergodicity.

Make the relationship to Maturana and Varela's autopoiesis theory precise. The observer triple (Sigma, I, B) with active loop closure appears to be a formal version of autopoietic organization; this s

If adaptation is coherence-domain expansion, natural selection should emerge as the process by which observers compete for coherence access. This would connect to the Fisher-Price equation via the Fis

The transition from non-observer chemistry to observer biology is the formation of the first B boundary with active loop closure. The framework should predict conditions under which this transition is

Extend from the classical Čencov theorem (unique monotone metric) to the quantum Petz classification (family of monotone metrics). In the quantum case, the monotone metrics form a family parameterized

The monotonicity direction (Proposition 3.2) implies that erasing information has a minimum thermodynamic cost. Quantify this: the coherence cost of reducing distinguishability by Delta D should be at

Generalize no-cloning from pure states to mixed states. Broadcasting (approximately copying) a mixed state is possible classically but impossible quantumly for non-commuting states. The coherence fram

For systems with variable particle number, the first law extends to dU = TdS - PdV + mu dN. The coherence analog of mu is the coherence cost of adding a minimal observer to A — this should be derivabl

The first law holds for arbitrary processes, not just quasi-static ones. The framework should extend to far-from-equilibrium coherence dynamics, connecting to fluctuation theorems.

In standard thermodynamics, population-inverted systems have T < 0. In the framework, this corresponds to systems where adding coherence decreases entropy — which requires a bounded state space wher

Connect the Fisher curvature on Sigma to the spacetime curvature on M. The Gravity derivation provides the latter from coherence density gradients; the bridge would n

Extend from the classical Fisher metric to the quantum Fisher information (Bures metric / symmetric logarithmic derivative). This is needed for full quantum state spaces. The quantum Čencov theorem [P

The derivation assumes finite-dimensional Sigma. For field theory, the state space is infinite-dimensional and requires functional-analytic care [Pistone & Sempi, 1995].

Prove conditional ergodicity (Theorem 5.2) rigorously from the dynamics, not just from the equidistribution of phases. This requires a mixing-time bound for the interaction-driven shuffling of non-pha

Quantify the critical inter-level coupling strength at which ETH fails. This should be expressible in terms of the coherence gap DeltaC and the intra-level density of states.

Derive the specific aging exponents and stretched-exponential parameters beta from the substitution matrix of the aperiodic tiling. The metallic-mean family ([Aperiodic Order](/derivations/foundation/

The Jarzynski equality and Crooks theorem should arise as finite-size corrections to the conditional-ergodicity framework. This overlaps with Gap 1 of [Entropy as Inaccessible Coherence](/derivations/

Extend Theorem 5.2 to the quantum regime, where the phase torus is replaced by a Hilbert space and Weyl equidistribution by quantum ergodicity of eigenfunctions.

Prove that bootstrap stability (invariant couplings under the addition of relational observers) implies betai = 0 in the coherence flow. This would make Theorem 4.1 rigorous.

The one-loop beta-function coefficients for U(1), SU(2), and SU(3) are established by standard methods in the framework's downstream derivations (Color Force Proposit

The coherence flow equation (Theorem 3.2) is exact, but extracting non-perturbative physics (confinement, instantons, solitons) requires solving the full functional equation. Connect to the [Mass Hier

Derive rhoC(omega) from the axioms and the particle content, rather than postulating its existence (S1). This would make the scale decomposition a theorem rather than a postulate.