The Last Moat | Chris Mayer and Ian Cassel on the Stock Picking Edge AI Can’t Replicate

Investing success relies on deep relational understanding and the ability to maintain long-term conviction, especially as AI flattens the information playing field. While AI disrupts horizontal software, vertical market software remains durable because it serves as the essential system of record for specific industries. Identifying "intelligent fanatics" and owner-operators provides a significant advantage, as these leaders often invest counter-cyclically and possess the vision to scale businesses beyond their initial niches. Successful stock picking requires mastering behavioral skills—such as disciplined position sizing and the difficult task of selling losers—rather than relying solely on analytical data. Ultimately, the most effective investors cultivate a deep, independent understanding of business trajectories, allowing them to hold positions through market volatility and avoid being swayed by short-term news cycles or analyst consensus.