Steve Caplin reports on the world of tech, where the Esports Olympics have just taken place. He discusses supermarket trolleys that could check on your heart, DNA testing for dogs, an inflatable bike helmet, why South Koreans are all suddenly a year younger, why NASA wants to introduce talking AI to space missions (haven't they seen 2001?) and convert astronauts' urine into water, how your phone could soon take your temperature, why an updated Furby is returning to annoy us and explains why he loves a pocket-sized, self-flying camera.