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Materials informatics represents a transformative intersection of data science, artificial intelligence, and materials engineering, enabling accelerated discovery and optimization of novel substances through computational analysis. However, this paper introduces the concept of epistemic saturation as a critical threshold where accumulating vast datasets no longer enhances meaningful knowledge generation. Instead, it perpetuates interpretive redundancies and systemic distortions, such as entrenched biases in data curation and algorithmic processing. Drawing on recent advancements in machine learning applications within materials science, we explore the dynamics of data-meaning interactions, highlighting how unchecked scaling of information inputs can lead to diminished epistemic value. The proposed framework interprets these phenomena through feedback structures that reveal trade-offs between quantitative abundance and qualitative insight, emphasizing ethical reasoning in algorithmic design and the need for reflexive systems-level oversight. By synthesizing literature on data integrity, algorithmic limitations, and value-laden scientific practices, this conceptual analysis underscores the implications for sustainable innovation across fields such as alloy development and nanotechnology. Ultimately, recognizing epistemic saturation fosters more integrative approaches to informatics, steering toward resilient knowledge ecosystems that prioritize interpretive depth over mere data proliferation. This shift has the potential to reorient materials research toward epistemically robust outcomes amid the ongoing digital transformation.