The valuation of the largest companies in the world fluctuates day to day, even minute by minute, but true success is a marathon, not a sprint. You heard the news: propelled by the AI frenzy, the chipmaker Nvidia passed the $3 trillion market cap and became the most valuable company in the world by market capitalization—for a few days last June, that is. Since then, things have returned more or less to what they used to be: as of September 3, 2024, when the market closed, Apple was still the