Black hole interiors and temporal completion: SMM/DTT and inflationary cosmology

01The question behind this comparison

Black-hole interiors test whether a theory can connect local physics, causal horizons and global information consistently. Classical general relativity describes a horizon and, in simple solutions, an interior singularity. Quantum field theory on that background predicts Hawking radiation in an appropriate state. A complete microscopic account would explain the quantum degrees of freedom and their evolution beyond the regime of the semiclassical approximation.

DTT’s retained-source picture offers a way to distinguish inaccessible information from destroyed information. An exterior completed archive may omit relations still present in the full source. That distinction is useful, but it does not itself solve the information problem: the theory must show how the final accessible state is related to the initial state and how its entropy evolves. A hidden archive that never influences observable radiation is not automatically a unitary evaporation mechanism. ^{[3] [4] [5]}

02The SMM/DTT starting point

The Single Monad Model begins with one nonspatial generative source. The Duality of Time Theory distinguishes the source’s inner production from the outer order in which completed records become accessible. Its six inner levels are nested functional roles of one process: a higher role organizes lower-level work. The seventh is the completion or observation interface. They are neither six independent clocks nor six additional time coordinates.

This distinction supplies a useful research question: which features of an observed world can follow from the way a source produces, retains and releases information? A concrete answer needs a state space, an autonomous update, retained memory and a rule connecting completion to an accessible measurement. In the constructions discussed here, those mathematical ingredients are stated explicitly. A successful finite example establishes what its specified mechanism can do; further arguments connect it to physical particles, spacetime or universal laws. ^[1]

03How the comparator works

Inflationary models describe a period of accelerated expansion, commonly generated by a scalar field whose potential energy dominates its kinetic energy. Their strongest quantitative content concerns the production and evolution of primordial scalar and tensor perturbations, together with the transition to the subsequent hot cosmological history. Inflation is a family of dynamical models rather than one unique potential or a complete explanation of the universe’s initial state.

The temporal-generation idea can be compared with inflation at two levels. It may seek an origin for the effective field, its clock and its geometry, or it may propose a different mechanism for the nearly homogeneous background and observed perturbations. A rapid sequence of source updates is not by itself accelerated metric expansion: the scale factor is defined through physical distances and its rate through a calibrated clock. The useful bridge therefore requires an effective stress-energy and a perturbation equation. An account that reproduces only the growth of a symbolic record count has not yet reproduced inflation’s observational predictions. ^[2]

04The decisive comparison

Inflationary cosmology and black-hole interiors both involve horizons and quantum fields, but the geometry, state and physical questions differ. A shrinking comoving Hubble radius during inflation is not the same object as an event horizon in an evaporating black-hole spacetime. DTT’s source architecture may organize both kinds of inaccessible records, yet it must derive each operational boundary from the appropriate effective metric.

The black-hole mass scalings supply a concrete check that is absent from a generic creation analogy. A completion mechanism must explain why hotter radiation corresponds to smaller mass and how the entropy capacity changes during emission. If the same source law is also used for primordial generation, it should yield both regimes without arbitrary redefinition of its clock or information unit. That would be a strong unifying result. The comparison remains valuable even when the regimes are not yet unified: it exposes which ingredients are shared, such as quantum correlation and causal access, and which require different dynamics. A common vocabulary of horizons cannot substitute for the state-dependent calculations that connect either regime to observations. ^{[2] [3] [4] [5]}

05Worked benchmark

For a nonrotating, uncharged black hole, the Schwarzschild radius is rs=2GM/c² and the Hawking temperature is TH=ℏc³/(8πGMkB). Doubling the mass doubles the radius and halves the temperature. Its Bekenstein–Hawking entropy scales as M², so doubling the mass multiplies the entropy by four. These different scalings constrain any proposed source capacity and release law simultaneously.

For an illustrative solar-mass black hole, rs is about 2.95 kilometres and TH about 6.2×10⁻⁸ kelvin. These are semiclassical predictions for the stated idealized system, not direct laboratory measurements of its radiation. A DTT model that uses completion events as radiation emissions must recover the thermal low-order spectrum in this regime while also specifying the correlations needed for unitary information recovery. A curve that reproduces only the temperature does not decide whether the radiation’s fine-grained entropy ultimately decreases. ^{[3] [4] [5]}

06What follows for the source programme

The strongest source-based contribution would be a finite model with a controlled exterior limit, an explicit internal memory and a demonstrably unitary transfer of information into radiation. Island calculations provide a separate benchmark for entropy in certain controlled gravitational models. Reproducing their qualitative Page-curve shape is insufficient by itself; the microphysical map and its domain of validity remain central to the explanatory claim. ^{[3] [4] [5]}

THE SAME QUESTION, DIFFERENT STARTING POINTS

The comparison at a glance

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