Lecture Transcript: http://tech.genius.com/Emmett-shear-lecture-16-how-to-run-a-user-interview-annotated Building product, and talking to users. In the early stages of your startup, those are the two things you should focus on. In this lecture, Emmett Shear, Founder and CEO of Justin.tv and Twitch, covers the latter. What can you learn by talking to users that you can't learn by looking at data?