ΛCDM cannot explain the matter-antimatter asymmetry observed in the universe: ordinary matter vastly outnumbers antimatter at η_B ≈ 6 × 10⁻¹⁰. The standard Big Bang should have produced equal amounts that would annihilate completely, leaving only radiation. Proposed solutions (leptogenesis, electroweak baryogenesis, GUT baryogenesis) all require physics beyond the Standard Model and additional fine-tuning (Sakharov 1967; Cline 2006). The CKM CP-violation at δ ~ 10⁻²⁰ falls 18 orders short of producing the observed η_B.
The standard model assumes Sakharov conditions (CP violation + baryon-number violation + out-of-equilibrium) need to be satisfied during the early universe by Standard-Model-only physics. The CKM CP violation magnitude is far too small. Closing the gap demands beyond-SM physics (new particles, leptogenesis seesaw mechanism, electroweak phase transition strengthening), none of which has experimental confirmation.
SCT replaces the hot-dense-center with a superluminal collision and the thermalized debris field. From this single change, baryogenesis proceeds via geometric CP violation from cascade angular momentum, requiring NO beyond-Standard-Model physics. The cascade J = μ(b × v_rel) vector inherent in any non-head-on collision provides a geometric CP-violating term of effective magnitude δ_CP,eff ≈ 10⁻² to 10⁻³, compared to the CKM value δ_CKM ≈ 10⁻²⁰ (P41).
That is geometric amplification of standard-model CP violation by nearly 18 orders of magnitude through the cascade impact-parameter geometry, sufficient to produce η_B ≈ 6 × 10⁻¹⁰. The non-equilibrium cascade shock environment (P22, P23) enhances sphaleron processes (which provide baryon-number violation) far above their equilibrium rate; combined with the cascade J's geometric CP violation plus the inherently out-of-equilibrium cascade thermalization, all three Sakharov conditions are satisfied using only Standard Model physics enhanced by the extreme non-equilibrium cascade environment.
The cascade therefore produces the observed baryon asymmetry as a natural geometric outcome rather than as a fine-tuned beyond-SM mechanism. The M8 mechanism uses only standard particle physics; the new ingredient is the cascade-deposited geometric J vector that amplifies CKM CP violation by the factor needed to match observation. The same M8 framework resolves the broader baryon-asymmetry questions and connects to the geometric CP signature predicted across cascade-seeded structure (P41 cross-cuts).
If precision laboratory CP-violation measurements demonstrate baryogenesis cannot proceed via geometric J-vector amplification of CKM CP violation at the required 18-order amplification level (no enhanced sphaleron rate from cascade non-equilibrium plasma, no geometric CP signature in laboratory experiments), the M8 geometric-baryogenesis explanation is refuted. The signature SCT prediction is η_B = 6 × 10⁻¹⁰ from cascade-J amplification without invoking new particles.