A casual conversation with a friend led NYU neuroscientist Tim Requarth down an unsettling line of inquiry. His friend has made an AI video of himself scaling Mt. Rushmore, and a little while later, he felt the slightest bit of a memory of being at Mt. Rushmore — even though he had never been there. The World's Host Carolyn Beeler speaks with Requarth about why our brains' process for making memories seems to be vulnerable to generative AI.