Comments on the original article by Miskewicz et al. (see record 2021-98114-001) regarding dimensional models that might explain core dynamic processes in borderline personality disorder. Miskewicz et al.'s findings provide strong evidence that although dynamic processes in borderline personality disorderare important, a trait-only model cannot fully explain core dynamic processes underlying symptom fluctuations as a function of context in borderline personality disorder (BPD). In fact, any single model is likely insufficient to explain BPD functioning in all its complexity. An important next step is to examine how traits and other theoretically and empirically informed constructs might synergistically (rather than merely independently) explain the dynamic expression of BPD symptoms in real-world contexts. (PsycInfo Database Record (c) 2022 APA, all rights reserved).