Throughout history, humanity has had only one system for asking and answering questions: other humans. When we wanted to know something, we asked the doctor, the teacher, or the neighbor who knew; we read the newspaper, which paid journalists to investigate; we consulted books, magazines or websites written by experts. This human question-and-answer system worked the way it worked: it was slow, imperfect, and unequal. But it had an architecture of incentives that, for better or worse, sustained the production of knowledge. Producers of information (newspapers, magazines, researchers, creators) invested time and resources in generating quality content.