A Pre-Inflationary Bounce at Nuclear Density Predicts the CMB Quadrupole Suppression: The CCEGA Cosmological Sector

CCEGA framework predicts a modified Friedmann equation H² = (8πG/3) ρ (1−ρ/ρc), which produces a cosmological bounce at ρ = ρc where H = 0 and the universe transitions from contraction to expansion without a Big Bang singularity. Using the critical density ρc ≳ 10 ρₙuclear constrained independently by neutron-star observations, we derive a bounce wavenumber kbounce ≈ 1. 8×10¹⁸ Mpc⁻¹. After Nᵢnf e-folds of inflation, this scale is stretched to CMB multipole ℓbounce = kbounce χ_* exp (−Nᵢnf). For Nᵢnf ∈ 50. 9, 54. 2 — the lower portion of the observationally allowed range 50, 65 — the bounce produces suppression of primordial power precisely at ℓ = 2, 3, coinciding with the low-multipole anomaly observed by Planck. This prediction is parameter-free: ρc is fixed by neutron-star constraints, not adjusted to fit the CMB. LiteBIRD (~2028) will measure Nᵢnf to ±2 e-folds via tensor-mode observations, providing a decisive test. Combined with the gravitational-wave echo discriminant detectable by the Einstein Telescope in 2035, CCEGA has two independent falsifiable predictions across two observational windows, both arising from the same critical density ρc fixed by neutron-star physics.