Verbose comments are useful, but this is why you keep your code in a version control system, and why you get good at going through the code's history, and why

Verbose comments are useful, but this is why you keep your code in a version control system, and why you get good at going through the code's history, and why commit messages and diffs matter. Someone opening the file should get as little as they need to be effective at their job/ticket. Sometimes that means they need extensive history of how we got here, but probably not.