According to Miles Deutscher, traders and analysts can achieve a 'high-ROI' by creating a 'prompt library' for AI tools. He suggests a workflow where users can have the AI model Grok interpret text from images of prompts, and then save these organized prompts in a database like Notion for future use. For traders, this method can streamline the process of research and analysis by having a ready-to-use library of effective prompts for market data, sentiment analysis, or strategy formulation, thus enhancing efficiency and potential profitability.