evidence/claim5/limitations.md

Claim 5 limitations and deviations

• No Table 5 model was trained. The exact head implementations, row split, schedule, seeds, and checkpoint-selection rule are not public enough for a faithful comparison.
• No Table 6 model was trained. The exact smaller training subset, evaluation row IDs, schedule, seeds, and RLM checkpoints are unidentified.
• The cited Qin et al. implementation establishes a defensible interpretation of normalized regression but is not substituted for the paper experiment.
• Public T5Gemma base metadata verifies rounded architecture sizes only; it cannot verify or falsify a correlation improvement.
• Gated base access is recorded as an access constraint, not as scientific evidence.
• The released 181.5M RLM discrepancy is not treated as a counterexample because that release is not identified as either exact Table 6 checkpoint.
• Public non-discovery cannot prove that private artifacts do not exist.
• The final scientific verdict is BLOCKED with LOW confidence and earns no forecast points.