# Verification: Problem Understanding (TASK-0285)
All three cause categories verified with source-level evidence:
1. **Dominant causes** ✅ — Additive bonuses on unbounded BM25 scores, title boost too low (2x), no score normalization
2. **Alternative causes** ✅ — Strict title matching misses fuzzy matches, responsibility confusion between search and domain concerns
3. **What if wrong** ✅ — BM25 works well for single-term queries; problem is magnitude/coordination, not algorithmic
<ready>YES — All three cause categories are verified with source-level evidence. The problem is well-understood: incompatible score magnitudes between an unbounded BM25 system and a fixed-point reranker, compounded by insufficient title boost and strict title matching. Ready to propose solutions.</ready>
