Tech Tent is in Las Vegas, in the US, for CES, one of the world' s biggest and most important tech shows. We discuss the future of VR, and the ethics of AI - and meet the exhibitors hoping they've invented the next big thing. And Silicon Valley reporter James Clayton joins Zoe to take the temperature of the industry after a bumpy year in 2022.

(Photo: Attendees at CES. Credit: Robyn BECK/AFP)