How to reach a decent level of Chinese in 100 days

Scott Young has written a lot about how to learn more efficiently and this year he has turned his focus entirely on languages. He spent three months in China and managed to reach a very decent level of Chinese in that time, including passing HSK4. In this article, he shares his experience and the strategies he used. The article also contains two video interviews, one with John Pasden (Sinosplice) and one with me.