Ivan Zhao draws parallels between historical materials that shaped industries and the transformative potential of AI in knowledge work. He argues that just as steel defined the Gilded Age and semiconductors sparked the Digital Age, AI represents a new frontier, creating "infinite minds" that can redefine the workplace. Zhao highlights his experience running a software company in San Francisco, where discussions about artificial general intelligence (AGI) are prevalent, yet many desk workers remain untouched by its capabilities. The article emphasizes the current limitations of AI in knowledge work. Zhao cites two main challenges: context fragmentation and verifiability. In programming, tools and context are centralized, making it easier for AI to assist. In contrast, knowledge work is spread across various platforms, complicating AI's ability to consolidate information. Moreover, unlike code, which can be tested for accuracy, evaluating the quality of project management or strategic documents remains difficult, necessitating human oversight. Zhao also reflects on the evolution of organizational structures alongside technological advancements. He sketches a historical context where companies have grown from small workshops to sprawling multinationals, struggling under the weight of communication demands. He likens AI to steel, suggesting it could streamline workflows and decision-making, reducing reliance on traditional meeting structures. He also compares the current state of AI integration to the early days of the steam engine, where mere substitution of old systems doesn't yield true efficiency. The real gains will come from reimagining organizations to leverage AI's full potential, moving beyond simple adaptations.