Warren Buffett, chairman and CEO of Berkshire Hathaway (BRK.B) (BRK.A) , has long been admired for his ability to capture complex economic truths in simple, memorable language. One of his most pointed insights is his assertion that “an iron law of business is that growth eventually dampens exceptional economics.” This message first appeared in his 1985 shareholder letter, but it’s something he has repeatedly reiterated over the past several decades. Most recently, during the 2025 annual shareholder meeting ...