Existing Observational Evidence Consistent with the Extended Randall–Sundrum Framework: A Literature Review

This document is not a theoretical paper. It makes no new claims about physics. It is a structured review of published observational anomalies that, when examined through the lens of the Extended Randall–Sundrum (Extended RS) model [1, 2, 3], resolve as instances of a single geometric mechanism rather than independent puzzles requiring independent solutions. None of the data reviewed here was gathered in support of the Extended RS model. The purpose of this review is to ask one question: is the existing body of anomalous observational data more consistent with the Extended RS geometric mechanism than with the standard explanations currently on offer? Version 2 incorporates findings from literature searches conducted in 2025–2026, which substantially strengthen several entries in the original review. Note on nomenclature: Earlier papers in this series used the term “RS–Barkley model.” This was an error of judgment. The geometry is Randall and Sundrum’s. The interpretation is the author’s. The correct designation is “Extended RS framework” or “Extended Randall–Sundrum interpretation.” All references to “RS–Barkley” in previously filed companion papers should be read as “Extended RS.”