Writing to learn, as I am imagining it, is a divergent social practice fueled by a lovely cocktail of curiosity, imagination, experience, and ignorance. For my purposes, there are two kinds of ignorance that most matter. The first kind of ignorance can be characterized as a refusal to learn. When reason, experience, scientific research, rigorous theory, and historical knowledge are not enough to educate a person to the wrongness or limitations of her ideas then this is a refusal to learn; it is a form of ignorance dependent on willful power, tribalism, and arrogance. The second kind of ignorance, by contrast, describes a state of “not knowing.” – 3 Quarks Daily