Horizon coincidence
Compare the observable universe’s mass-energy scale with the Schwarzschild radius associated with that mass.
◉ BLACK HOLE NOTEBOOK
Are universes born inside black holes?
Explore the scientific foundations, competing models, observations, and open questions behind black-hole cosmology.
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Core topics
Einstein–Cartan bounce
Spin-induced torsion may become repulsive at extreme density, replacing a singular endpoint with a bounce.
Cosmological natural selection
Lee Smolin’s proposal treats black-hole production as a reproductive mechanism through which physical parameters may vary.
Observational tests
CMB anomalies, galaxy-spin claims, and black-hole demographics are possible probes—but none is decisive evidence.
Scientific limits
These ideas remain speculative. Horizon analogies do not by themselves prove that our universe is a black-hole interior.
Source directory
14 notebook sources
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| Source | Type | Official document |
|---|---|---|
| Black Hole Cosmology — Research Dossier & Overviews | Notebook source | Official link unavailable |
| Schwarzschild Horizon Equivalence | Notebook source | Official link unavailable |
| Einstein–Cartan Gravity & Big Bounce | Notebook source | Official link unavailable |
| Lee Smolin Cosmological Natural Selection | Notebook source | Official link unavailable |
| Observational Tests: JWST & CMB | Notebook source | Official link unavailable |
| Planck 2018 cosmological parameters and isotropy studies | Notebook source | Official link unavailable |
| Hawking: Particle creation by black holes | Notebook source | Official link unavailable |
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