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.  

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