Meta-cold dark matter

A proposed dark-matter scenario in which nonrelativistic daughter particles are produced relatively late by decay of an earlier cold species.

Version

v1 · 2026-09-08 · History

Domain-specific #

5549

Origin domain

cosmology

Subdomain

cosmology

Aliases

MCDM

Core Idea

It is a speculative model constrained by expansion history and structure formation, and the decay redshift, mass splitting and daughter velocity determine whether small-scale tensions improve. A heavy cold parent survives through early structure growth, decays after a chosen epoch into slightly lighter daughters and injects a controlled velocity dispersion that modifies inner halos while preserving large-scale cold-dark-matter behavior. The abstraction is therefore identified by a declared carrier, a transformation or constraint over that carrier, and an invariant that tells an analyst whether the named structure is genuinely present.

Scope of Application

Meta-cold dark matter belongs to cosmology and is useful where the analyst can specify the typed cosmology carrier, including objects, relations, parameters, conventions, evidence, boundaries, and comparison targets, then evaluate the parent and daughter species, masses and abundance, decay channel lifetime and redshift, daughter momentum and free-streaming scale, background cosmology, halo-density prediction and large-scale-structure and cosmological constraints are explicit. The scope is broad within that domain but bounded by the need for the parent and daughter species, masses and abundance, decay channel lifetime and redshift, daughter momentum and free-streaming scale, background cosmology, halo-density prediction and large-scale-structure and cosmological constraints are explicit. High-level cosmological model only; no particle-production or laboratory procedure is provided.

Clarity

The abstraction clarifies a crowded vocabulary by making the parent and daughter species, masses and abundance, decay channel lifetime and redshift, daughter momentum and free-streaming scale, background cosmology, halo-density prediction and large-scale-structure and cosmological constraints are explicit the center of the account. A claim should name the carrier, the governing operation or relation, the applicable assumptions, and the recognition test.

Manages Complexity

Without the abstraction, an analyst must reason directly over many local details: the carrier roles, admissibility assumptions, competing conventions, derived invariants, boundary cases, and proof or validation obligations specific to Meta-cold dark matter. Meta-cold dark matter compresses them into the roles in the structural signature. That compression permits comparison across instances without erasing the variables that determine validity. It also exposes which details may be varied safely and which are constitutive.

Abstract Reasoning

1. Identify the carrier. State what the elements, states, objects, or observations are: the typed cosmology carrier, including objects, relations, parameters, conventions, evidence, boundaries, and comparison targets. Reject examples whose alleged carrier belongs to a different problem. 2. Lock the constitutive rule. Express the parent and daughter species, masses and abundance, decay channel lifetime and redshift, daughter momentum and free-streaming scale, background cosmology, halo-density prediction and large-scale-structure and cosmological constraints are explicit independently of one notation or implementation.

Knowledge Transfer

Knowledge transfers strongly among subfields of cosmology because they reuse the typed cosmology carrier, including objects, relations, parameters, conventions, evidence, boundaries, and comparison targets, A heavy cold parent survives through early structure growth, decays after a chosen epoch into slightly lighter daughters and injects a controlled velocity dispersion that modifies inner halos while preserving large-scale cold-dark-matter behavior., and type the carrier, state every parameter and convention in the definition, test that the parent and daughter species, masses and abundance, decay channel lifetime and redshift, daughter momentum and free-streaming scale, background cosmology, halo-density prediction and large-scale-structure and cosmological constraints are explicit, compare the nearest accepted identity, and report counterexamples, uncertainty, and limiting cases.

Relationships to Other Abstractions

Current abstraction Meta-cold dark matter Domain-specific

Parents (1) — more general patterns this builds on

• Meta-cold dark matter is a kind of Formalization Prime

  The proposed strict upward parent is prime:formalization.

Hierarchy paths (2) — routes to 2 parentless roots

• Meta-cold dark matter → Formalization → Representation → Abstraction

Show alternative path (1)

Neighborhood in Abstraction Space

Meta-cold dark matter sits in a crowded region of the domain-specific corpus (32^nd percentile for distinctiveness): several abstractions share nearly its structure, so a description that fits it tends to fit its neighbors too.

Family — Unclustered & Miscellaneous (1565 abstractions)

Nearest neighbors

• Mixed dark matter — 0.94
• Dark energy — 0.91
• Einstein's static universe — 0.91
• Static universe — 0.91
• Redshift quantization — 0.90

Computed from structural-signature embeddings · 2026-09-08