If you want to know what you really think, try explaining it on paper without sounding like a fool. Farnam Street is one of the best blogs out there! "Writing about something teaches you about what you know, what you don’t know, and how to think. Writing about something is one of the best ways to learn about it. Writing is not just a vehicle to share ideas with others but also a way to understand them better yourself. Paul Graham put it this way: “A good writer doesn’t just think, and then write down what he thought, as a sort of transcript. A good writer will almost always discover new things in the process of writing.”