PERSON
Fred Brooks
The computer scientist who managed the most expensive software project in history, wrote the field’s most widely read book about why software projects fail, and—with the AI revolution—has been vindicated on the deepest claim he ever made: that the hard part of software was never the code.
Frederick Phillips Brooks Jr. (1931–2022) spent his career arguing that the hardest part of software is not building it but knowing what to build—and that no tool, technique, or methodology could eliminate this essential difficulty. As the manager of IBM’s OS/360 project, one of the most ambitious and expensive software efforts in history, he learned this at painful, practical cost.
The Mythical Man-Month (1975) distilled the lessons into principles that have become foundational to software engineering:
Brooks’s Law (adding people to a late project makes it later), the surgical team model, and above all the
essential–accidental complexity distinction. His 1986 essay
No Silver Bullet argued that no single development would produce an order-of-magnitude improvement in software productivity within a decade, because the essential complexity—understanding the problem, specifying requirements, designing the system—would resist any tool that addressed only the accidental difficulty of implementation. AI has now produced the order-of-magnitude improvement