Summary:

- The article is a personal blog post by Noah Smith, a former economist and current writer, reflecting on 4 years of running his "NoahOpinion" blog.
- It discusses the evolution of the blog, including the transition from writing primarily about economics to covering a wider range of topics like technology, politics, and culture.
- The author shares insights on the challenges and rewards of maintaining a successful blog, as well as his thoughts on the role of online media in shaping public discourse.