Featured interview: AI pioneer Yoshua Bengio

Chatter about ChatGPT has soared this year. Now, a group of AI leaders and tech executives -- Elon Musk and Steve Wozniak among them -- has released a letter calling for a six-month pause in certain paths of development, citing potential risks to society and humanity. It comes just two weeks after the firm OpenAI announced an even-more-powerful version of its rival chatbot tool. Joining Julia to discuss is AI pioneer Yoshua Bengio, another signee of the letter.  Also on today's show: Matt Gialich, CEO of AstroForge, a mining startup hoping its refining process can work on asteroids in space.   To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices