Each Sunday, TED shares an episode of another podcast we think you'll love, handpicked for you… by us. Today we're sharing a special episode of The TED AI Show, our newest podcast about the technology that's changing our lives. Non Player Characters --NPCs for short-- have always been a huge part of what makes video games engaging, from Cortana in Halo to Navi in The Legend of Zelda. But interactions with NPCs were always limited to a pre-written script. Until now. Purnendu Mukherjee is the CEO of Convai, a platform that enables developers to create NPCs with human-like conversational abilities. He joins The TED AI Show host Bilawal Sidhu to chat about our evolving relationship with "AI characters” and what we gain and lose when our digital relationships are so life-like, it almost doesn’t matter who (or what) is on the other end.  For transcripts for The TED AI Show, visit go.ted.com/TTAIS-transcripts