Play devil's advocate here. Human memory is not flawless, and people makes mistakes, so maybe Adam Grant should have read one of his previous work as a refreshe

Play devil's advocate here. Human memory is not flawless, and people makes mistakes, so maybe Adam Grant should have read one of his previous work as a refresher. Even if not wrong, it is possible that he missed some stuff he thought he had published, but hadn't. If, as a developer, you had the experience of looking at some terrible code, angrily searching for whoever wrote that monstrosity, only to realize that you did, that's the idea.