Reddit announced it will start charging companies to use its huge, ever-growing trove of text to train A.I. chatbots. It’s another expense for the fledgling tech and another knock against the “open internet” ideals that Reddit once embodied.  Guest: Mike Isaac, tech reporter for the New York Times. If you enjoy this show, please consider signing up for Slate Plus. Slate Plus members get benefits like zero ads on any Slate podcast, bonus episodes of shows like Slow Burn and Dear Prudence—and you’ll be supporting the work we do here on What Next TBD. Sign up now at slate.com/whatnextplus to help support our work. Learn more about your ad choices. Visit megaphone.fm/adchoices