I tried to fool my brother, sort of. Next to him and his Pekingese on the couch, without context or introduction, I played an audio clip of me-deepfake audio of my voice that I'd asked cybersecurity startup Doppel to make. Fake Me's voice sounded distressed, stilted, and just persuasive enough that he narrowed his eyes, scrunched his nose, and asked: "That's AI, right?" My extremely online brother was far from fooled, but he was unsettled.