Eventually function decomposition becomes a proxy for assignment anyway, especially in languages where assignment and mutations are necessary. Function decompos

Eventually function decomposition becomes a proxy for assignment anyway, especially in languages where assignment and mutations are necessary. Function decomposition is not necessary for all code and can actually be harmful to one's understanding if done improperly. I generally follow the rule of threes ("if the code appears in three places the exact same way, extract it to a separate function") as this helps me balance readability of functions with size of functions. I understand your advice applies very neatly to functional languages. I would love to live in a functional world. I don't. So that's why my advice is like that.