The Subject Matter Gap: Why Domain Expertise is the New Moat in AI Training The era of "more data" has officially been replaced by the era of "better data." As we move deeper into 2026, the competitive advantage in Artificial Intelligence is no longer found in the size of the... AI data quality assurance AI training data Chain of Thought reasoning Human-in-the-loop AI LLM fine-tuning RLHF STEM PhDs for AI training domain experts for AI expert-guided ground truth fine-tuning for finance AI high-quality datasets model hallucination prevention Dec 16, 2025 AquSag Technologies Blog