S&P 500 Bulls Rattled By Cost To Build Out AI

Core Viewpoint - The article discusses the multifaceted identity of the blogger known as Ironman, who operates on the Political Calculations site, focusing on investing, business, and economics [1]. Group 1 - Ironman may have multiple professional roles, including engineer, researcher, analyst, rocket scientist, editor, and possibly a teacher [1]. - The identity of Ironman is ambiguous, suggesting that it could be one person or a collective of individuals contributing to the blog [1].