My father used to tell me that I should not use a calculator before I could do the math on paper. A calculator is a much more powerful tool when you know the principles behind it. When we program, we constantly use frameworks and technology that we don't understand. As technologies get more complex it becomes more and more difficult to use it slightly different from how it was intended. In this talk, Johannes writes a web application live, guided by tests. But he throws away all the frameworks. He throws even throws away ASP.NET. In this talk, you will learn more about how HTTP really works and how the frameworks build on top of it, you will learn a test driven approach to solving problems, and you will learn a few new tools and tricks with .NET.