It’s 3pm on a crisp August afternoon in Johannesburg. Tsitsi Masiyiwa is seated on a comfy couch in a makeshift living room at her elegant office in the leafy suburbs of Dainfern, north of the city. I meet her when she is in a deep conversation with a South African journalist and one of her office employees. I sit down to join the conversation and Masiyiwa recounts a fascinating story.