Logs are great. Interactive debugging is great. Both of these can also help build an understanding of the code and systems involved. But they're just debugging

Logs are great. Interactive debugging is great. Both of these can also help build an understanding of the code and systems involved. But they're just debugging tools, and they should rarely be /required/ to find a bug. I am teaching the more fundamental skill: how to (learn to) think through the problems and the systems in a way that lets log files be a useful tool instead of the only option.