We humans are pattern finders and explanation seekers. Fortunately, many of our seemingly reasonable patterns and explanations have not withstood the test of time. For example, we no longer believe that volcanic eruptions occur as a result of the god Vulcan firing up his furnace inside a volcano. During the past several centuries, we have developed and refined a process that avoids such wishful thinking. This process, science, makes it possible to separate reality from illusion. The rationale for accepting science’s way of evaluating phenomena is compelling: It works. Its self-correcting features allow us to determine which beliefs about reality are flawed.