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In the evolving landscape of materials artificial intelligence (AI), synthetic data emerges not merely as a technical augmentation but as a profound scientific intervention that reshapes the interpretive dynamics of knowledge generation. This manuscript develops a conceptual framework that interprets synthetic data as an intermediary layer facilitating interactions between empirical realities and algorithmic abstractions in materials science. This study synthesizes recent literature and examines how synthetic data influences epistemic trade-offs, such as those between data fidelity and model generalizability. It steers feedback structures within AI-driven discovery processes. The framework underscores systems-level insights into integrating generative models with domain-specific ontologies, highlighting ethical considerations in the curation of virtual datasets that mirror physical constraints without empirical grounding. Analytically, it explores the implications for accelerating materials innovation through enhanced representational capacities, while addressing potential distortions in scientific reasoning arising from over-reliance on simulated inputs. This interpretive approach reveals the transformative potential of synthetic data in reconfiguring the boundaries of human-AI collaboration, fostering a more reflexive understanding of material phenomena. Ultimately, the framework invites a reevaluation of data’s role in scientific inquiry, emphasizing integrative logics that balance innovation with epistemological integrity in the pursuit of advanced materials.