According to Brad Freeman (@StockMarketNerd), understanding and respecting the limits of one’s knowledge is essential for successful stock-picking, referencing Warren Buffett’s 'circle of competence' and 'no called strike game' principles (source: Twitter, June 13, 2025). Freeman highlights that his worst investment decisions resulted from acting outside his expertise. For traders, this emphasizes the importance of in-depth sector analysis and avoiding unfamiliar assets, a principle equally crucial in the volatile cryptocurrency market, where lack of understanding can amplify risks and losses.