2203.14006
Continuity scaling: A rigorous framework for detecting and quantifying causality accurately
Xiong Ying, Si-Yang Leng, Huan-Fei Ma, Qing Nie, Ying-Cheng Lai, Wei Lin
incompletehigh confidence
- Category
- Not specified
- Journal tier
- Strong Field
- Processed
- Sep 28, 2025, 12:56 AM
- arXiv Links
- Abstract ↗PDF ↗
Audit review
The paper states the key theorem and the continuity-scaling recipe, but defers the crucial mathematical arguments to the Supplementary Information; in the main PDF, the “key condition [DD]” and the proof of linear scaling of ⟨δ⟩ versus ln ε are not provided, so the logical chain is incomplete in the paper as given. The candidate solution supplies a plausible local-differential argument (normal coordinates, Jacobian bounds) that yields δ = Θ(ε) under D_y f ≠ 0 and δ essentially independent of ε if f is independent of y, supporting the directionality criterion qualitatively. However, it never derives the paper’s central log-scaling law; it assumes it “empirically,” and conflates vanishing Jacobian along an orbit with global y-independence. Hence both sides leave gaps: the paper’s main theoretical claim is unsubstantiated in the provided PDF, and the model’s proof does not establish the stated linear dependence on ln ε nor the precise monotonicity with “coupling strength.” Citations: the paper’s definitions and theorem are in the main text, with the theorem and scaling claims placed to SI ; the algorithmic slope estimation and chosen log-spaced ε-grid are given in Methods .
Referee report (LaTeX)
\textbf{Recommendation:} major revisions \textbf{Journal Tier:} strong field \textbf{Justification:} The paper introduces a promising continuity-scaling approach with compelling empirical demonstrations. However, the core theoretical claims—linear scaling of ⟨δ⟩ versus ln ε and monotonic dependence of the slope on an explicit measure of coupling strength—are not established in the main PDF and depend on Supplementary Information not provided. The key condition [DD], the role of sampling/ergodicity, and the handling of higher-order dependencies require clear statements and proofs in the main text. Without these, the argument is incomplete.