Researchers and casual users alike have documented that generative AI tools often struggle with negation: the language we use to express absences, untruths, and opposites. Gen AI models may be able to show you what you do want to see, but they're NOT as good at NOT giving you what you DON'T want. Read that last sentence back again and you can understand why. So, how do we understand it ourselves?

Why do we use such unusual words for the people we love? From baby to bunny, two thirds of American adults refer to their romantic partners by a pet name. And we've been doing this for a long time—the Historical Thesaurus of the Oxford English Dictionary traces terms of endearment over a thousand years. But where do all these pet names come from?