[shadowfoxx]

In my career as a software dev I've found one thing to be true - Every Paradigm I ingest that opens new windows of opportunity are great at first pass and as I learn more the more narrow the scope they can be applied. (This is kinda true in life, too. Like when people say, "Its econ 101 or bio 101." etc. What seems like a statement about 'common' knowledge is actually an indication of how shallow your knowledge is!)

Specifically related to this topic is a talk by Dan Abramov called, "The Wet Codebase" - He says it better than I can sum up and has visual aids : https://www.youtube.com/watch?v=17KCHwOwgms

Other have pointed out code that is similar in function vs similar by coincidence and I think that thought alone is worth chewing on.