Spis treści:
  • <p>This synthesis document compresses the 35-paper Interior Observer (IO) corpus through Paper 35 v1.1 into a single overview written for working physicists arriving cold. The IO framework is built on two working premises: (1) the observable universe exists inside a Schwarzschild black hole, and (2) the physics inside the horizon is the same as the physics outside. From those premises, the framework derives a typed boundary-to-bulk projection architecture that yields cosmological observables across geometry, Big Bang Nucleosynthesis, recombination, the Hubble tension, and late-time evolution, with no fitted parameters.</p> <p>The overview leads with the cosmological lithium problem (Paper 24 v2.3): a branch-resolved A=7 mechanism gives D/H = -0.66σ, Y_p = +0.68σ, and Li-7/H = +0.46σ against current observations, all within 1σ at zero fitted parameters, with the nuclear isovector ratio c_n/c_p = 1+γ_BI² matching at 0.023%. Subsequent sections cover the framework's two premises and their corpus arc, claim-label discipline and methodology, the typed-compiler architecture, the major geometry and thermal results (T_obs = 2.7253 K at 0.3σ from FIRAS; n_s = 0.9639 at 0.24σ from Planck), the BBN scorecard, the six-method Hubble tension account (max residual 0.57σ across Planck, GW sirens, TRGB, TDCOSMO, SH0ES, and TRGB+SN), the late-time chain in which Λ drops out of the hidden-support acceleration equation, the reproducibility infrastructure (paper-versioned bundles with SHA256-pinned GitHub Releases), the open-problem frontier (with the baryogenesis source mechanism reduced to a spin^c residual class on the horizon U(1) bundle), and annotated reading paths into the corpus organized by research interest.</p> <p>This document introduces no new physics, theorems, derivations, or numerical claims. It organizes existing results from the IO corpus for first-encounter reading. Claim labels (DERIVED, DERIVED/SCOPED, DERIVED/CONDITIONAL, CONDITIONAL/CONSTRUCTED, RECONSTRUCTION) are preserved verbatim from the source papers and not flattened. All numerical values were verified against the current versions of Papers 1, 17, 21, 22, 23, 24, 25, 32, 34, and 35, and all reproducibility bundle SHA256 hashes were verified against live GitHub Releases.</p> <div></div>