Last week, more than 1,000 scientists and tech leaders, including Elon Musk, signed an open letter calling for a pause in the race to develop more powerful artificial intelligence models. The letter channeled a certain dread that it seems many are feeling about this fast-changing technology. It also became a lighting rod for criticism from both AI boosters and skeptics. Gary Marcus is a signatory of that letter. He’s a professor emeritus of cognitive science at New York University and co-author of the book “Rebooting AI: Building Artificial Intelligence We Can Trust.” Marketplace’s Meghan McCarty Carino spoke with Marcus about his reasons for signing the letter.