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 Bilawal 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