You're probably familiar with polyglot programming, especially if you're a web developer. SQL for your relational database, Java or Ruby or Python for your middle tier, JavaScript for your browser. Each of these languages has particular strengths and weaknesses, so we try to use the best tool for the job in each tier. In this presentation, Paul Snively will show how some of these benefits can be obtained without switching languages among tiers using languages that are, by design or by accident, multiparadigm: the increasingly-popular OO/FP hybrid Scala, the reviled-but-still-useful C++, and the wat-inducing OCaml. Be prepared to have your polyglot assumptions challenged and to have fun in the process.