You're nodding along to your friend's story when suddenly their eyes go blank, mid-sentence, like a browser tab crashed. They stand there for three full seconds—which feels like three years—and then ask you what they were talking about. So you recap their entire anecdote back to them, word for word, like you're a human transcript service, and they go "Oh right, yeah," and continue with the exact same story you just told them. You've now heard it twice, they've heard it once, and somehow you're both exhausted.