This week Scott and his increasingly croaky voice are joined by Justin, who tells us all about how he taught himself computer programming in a cave, with a bunch of scraps (it may have been a Starbucks), and realised he wanted to pay it forward by teaching others. Hear about whether you feel like a fraud teaching people when technically you were never taught, exactly what you do when someone asks you to make 'Facebook for Old People', and how Justin missed the opportunity to get on on the ground floor of Blackmail: The App.