These pieces of ostensibly impressive trivia of the format "X was written in Y days" promote a fallacious impression that managers often suffer from: That "work

These pieces of ostensibly impressive trivia of the format "X was written in Y days" promote a fallacious impression that managers often suffer from: That "work" is writing code, and great developers "work" fast. Writing v1 is the easiest and fastest part of making a great product, by far. Understanding the details of the problems it solves and the ramifications of specific solutions - that's the hard work that takes years of experience and months of planning, and is the real measure of a developer. Unfortunately the former can be tracked with metrics, while the latter can not.