A neuroscientist explains what was wrong with the Google Gemini Olympics ad

Artificial intelligence can do remarkable things, but a general consensus seems to have emerged about one thing it can't, or perhaps shouldn't, do: Compose a child's admiring letter to her sports hero.

Google learned this lesson the hard way. "Dear Sidney," the company's new ad for its AI-powered chatbot, Gemini, in which a dad asks Gemini to write a note to Olympic hurdler Sydney McLaughlin-Levrone on his daughter's behalf, has been widely criticized. People have wanted to "scream." They...