Master readers must sort fact from opinion to properly understand and evaluate the information they are reading. A fact is a specific detail that is true based on objective proof. A fact is discovered. An opinion is an interpretation, value judgment, or belief that cannot be proved or disproved. An opinion is created. Objective proof can be physical evidence, an eyewitness account, or the result of an accepted scientific method. Most people's points of view and beliefs are based on a blend of fact and opinion