True. We make a best guess and if it turns out to be ineffective, refactor which means to choose a new factor. The other common cause of difficult naming is 're

True. We make a best guess and if it turns out to be ineffective, refactor which means to choose a new factor. The other common cause of difficult naming is 'refactoring' without knowing what the new factor is, ie. blind deduplication or along arbitrary seams. My strategy is to delay abstraction if possible until we have an opinion one way or another. Some others like to have clean/abstracted code beyond current understanding. Not being able to make a good guess is a lack of understanding of problem domain, nicely rolled up into this catch all term.