I recently had an argument in an epistemology class about the relationship between facts and human minds. I argued that a fact cannot exist until a human mind knows it. Most of the rest of the class (and the professor) argued that facts can exist independently of human minds. My professor's example: Every human being believes that the world is flat, when it is in fact round. I argued that the fact that the world is round did not exist until someone thought it. Can a fact exist without a human mind?