JADES-GS-z14-0 at z = 14.18 shows ALMA-detected [O III] emission implying oxygen above a tenth solar at under 300 Myr, with MoM-z14 adding super-solar N/C at z = 14.44. Oxygen requires completed generations of massive stars, so the enrichment clock must have started, run, and recycled before an epoch where ΛCDM has barely formed its first minihalos. The implied progenitors violate the halo-growth ceiling tenfold.
The model starts every clock at the same zero: first stars near z of 20 to 25, then hierarchical assembly, then enrichment. Chemistry at z = 14 must fit inside roughly 150 Myr of effective time, and a tenth-solar oxygen budget does not; the model can only compress the sequence with bespoke top-heavy initial mass functions invoked per object.
SCT replaces the hot-dense-center with a collision cascade that seeds proto-structures at deposition, with masses set by collision geometry (P56) and star formation beginning immediately in the dense seeded gas (P22). The enrichment timeline decompresses because the assembly bottleneck is gone: a 10⁸ solar mass system does not wait for hierarchical merging to build it before its first supernovae fire, so multiple complete stellar generations fit comfortably before z = 14.18, and tenth-solar oxygen at 300 Myr is the expected maturity of an early-seeded system rather than a violation.
The abundance patterns carry the signature. Super-solar N/C and rapid alpha-element budgets record dense, early, repeated processing, exactly what immediate in-place generations in a seeded proto-structure produce; and the pre-existing matter context (P25) adds the deeper point that the collision thermalized matter inherited from prior cascade generations, though thermalization above the QCD threshold reset its chemistry, so all observed metals are post-collision products of the head start, not relics. The cascade's termination before BBN (P40) keeps the primordial abundance baseline standard, which is why the anomaly is in the timeline, not the starting composition.
This is the same seeding head start behind the z = 14 stellar masses and the quenched galaxies at z = 7.3. There is no need to invoke top-heavy initial mass functions tuned object by object.
The clock test cuts both ways: SCT requires chemical maturity to extend as far back as seeded systems exist, so deeper ALMA spectroscopy finding a sharp metallicity floor, with all z above 15 systems pristine in a way that traces the ΛCDM first-star clock, would restore the standard timeline and remove the head start. The registered demographic kill also applies: zero massive galaxies above 10⁸ solar masses found at z above 14 in JWST spectroscopic programs would collapse the seeded population the chemistry rides on.