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@michael_chirico @jonmummolo “Hone in began as an alteration of home in, and many people regard it as an error. It is a very common, though, especially in the U.S. and Canada—so common that many dictionaries now list it—and there are arguments in its favor.” 🤷🏻♂️ grammarist.com/eggcorns/home-in-hone-in/