If you’re a software developer, and you’re currently fluent in one language, are you doomed to irrelevancy? Is it actually better to be a ‘jack-of-all-languages, master of none’, or is there some kind of happy medium in between? And if so, how do you tell when you’re in it? In this talk, a "polytechnical" programmer will talk about his experiences living across multiple languages, platforms and storage systems. (An excerpt from the keynote of the same name.)