rarity-route verified: spanning reproduces 0.46, sits between population & concentration, redundancy RULED OUT (incr rank 0.75m); candidate closed form rejected (over-predicts). Paper #2 §2 = two routes: low-rank existence proof (2a) + measured rarity mechanism (2b)

verify two reviewer-probe claims: (1) measured lesion spectra REFUTE 'low internal rank' (RankMe 339>307) -> correct attribution to RARITY across papers #1/#2/NEGATIVE_RESULT; (2) verified MedDINOv3/DINOv3=RoPE vs DINOv2=learned-absolute, paper #3 §3 stated precisely

G1c FINO-style adapter: metadata guidance offsets SSL-globalization directionally (+0.014) but no CI-significant recovery; F1b not de-risked at adapter scale (honest)

v4: concentration-steering NEGATIVE (globalization is entangling, not removable); multi-seed rigor (S1 exact law, S2 tail-gap selector regret 0.006); papers updated