Love this thread. I see this a lot, where engineers blindly follow best practices and have urges to re-factor code when its not necessary. Big files are not necessarily bad and I love that a lot of the comments are with me on this. Having to open several tabs and remembering where you are in the stack can be hard once there are more than a couple of frames / function calls in. There is a lot of benefit to keeping logic in 1 file or 1 function, and there is a time and a place for writing really granular DRY code. As with all engineering, there are always trade-offs to every decision and I think its about time we put to rest some of the traditional rules of thumbs and 'code smells' new engineers learn and adhere to like a bible.