JWST and X-ray observations have revealed actively accreting black holes with inferred masses up to 10⁷ to 10⁹ M☉ at redshifts z ≈ 9 to 11 (Maiolino 2023; Larson 2023). Light seeds from stellar remnants cannot reach 10⁹ M☉ by z = 10 even at sustained Eddington-limited accretion. Heavy-seed scenarios in ΛCDM require finely tuned dense-gas inflow, sustained super-Eddington accretion, or exotic seeding channels (Volonteri 2010; Inayoshi 2020).
The standard model assumes SMBHs grow from light stellar-remnant seeds through Eddington-limited accretion. Reaching 10⁹ M☉ by z = 10 requires either anomalously massive seeds (10 to 10⁵ M☉) at z > 30 with no formation mechanism, or sustained super-Eddington accretion that violates standard radiation-pressure constraints. Neither is parsimonious.
SCT replaces the hot-dense-center with a superluminal collision and the thermalized debris field. From this single change, the cascade overlap-volume densities cross the Schwarzschild threshold pre-QCD-cooling, depositing 10⁷ to 10⁹ M☉ SMBH seeds directly through head-on cascade collisions (P22, P23, P46). The seeds are formed as part of the cascade thermalization process itself rather than assembled gravitationally from stellar remnants.
The polyquark-core framework (P66, P67) ensures stable interiors at the cascade-deposited densities, replacing the singularity that classical GR predicts with a finite-density quark-degeneracy-supported core. The resulting SMBH seeds are present at the proto-galaxy formation epoch with the observed 10⁷ to 10⁹ M☉ range, naturally producing the JWST high-z SMBH population (UHZ1, GN-z11, JADES-GS-z14-0 BH) without invoking super-Eddington accretion or exotic seeding.
The temporal evolution from z = 10 (overmassive M_BH/M_* ratios 10 to 1000x above local Magorrian relation) to z = 0 (standard Magorrian) is a unique SCT signature: cascade-seeded SMBHs preceded host stellar build-up, so the BH was overmassive at high z when the host was small, then the host caught up over the next few Gyr. This pattern has no source in ΛCDM and is a clean falsifiable handle. The same M1 framework that resolves the JWST early-galaxy mass crisis (recid 7, 108) and the hierarchy problem (recid 6) accounts for the SMBH-seed observations.
Detection of a complete z > 7 BH mass census showing all observed SMBHs can be explained by Eddington-limited accretion from Population III stellar seeds formed at z < 30 (with no residual overabundance requiring M_seed > 10⁶ M☉) would refute the M1 cascade-seeded explanation. The signature SCT prediction is the M_BH/M_* overmassive ratio at z > 7 followed by Magorrian-relation evolution to z = 0.