Be careful what you wish for: Imagine you built a piece of software that everyone uses hundreds of times a day. It’s installed on every computer and mobile device. The entire Internet relies on it. It’s the cloud, thirty years ago. That’s what Paul Mockapetris did when he created DNS, the naming system on which the Web is built. Oh, and he also wrote the first SMTP implementation. That’s email. In this candid session, hear what it was like at the beginning, when a little piece of code could have a huge impact on the world.