Since 2006, a course entitled Ignorance has been taught at Columbia University. Guest scientists are invited to speak about what they don’t know. The scientists come from a variety of disciplines to discuss what “they would like to know, what they think is critical to know, how they might get to know it, what will happen if they do find this or that thing out, what might happen if they don’t.” The course focuses on all that is not in the textbooks and thus guides students to think about what is unknown and what could be known.
