A few months ago, a clip from a podcast went mildly viral online. A lightly dressed woman sits in front of a microphone, explaining her sex life in pedantic detail to an offscreen interviewer. It was strange and unpleasant, which was why people couldn’t stop looking at it. What kind of podcast is this, exactly? Who’s listening to it? The answer was nobody. The woman was a porn actress called Vicky Banxx, and the podcast didn’t exist. Across the world, thousands of people are doing the same thing: plonking themselves down in front of mics, setting up a camera and talking in a genial, conversational style to absolutely no one.