We are scared of many things but "the fear of the unknown is the greatest fear of all" (Manning, Doug). Every person fears the unknown on some level. The fear of the unknown can be explained like this; our brain stores all the information that is gained throughout our lives, when we are presented with a situation that our brain doesn't know about, we feel vulnerable and thus out of control. We get scared when we feel we are not in control "because control is what establishes a measurement that we can use to manipulate the result of our actions" (Medrano, Caty). This fear of the unknown has been with us for thousands of years, and is a big part of the survival of our species. So why is fear of the unknown is bad? Fear of the unknown creates desperation and indecision that paralyzes our logic, thinking and actions. It holds us back from living a truly fulfilling life, "we can't live freely because we can't stop living in fear" (Torres, Marco). Fear of the unknown also makes us hesitant to do new things and explore what is possible. We would've never gone to the moon or fly the first airplane if were not for the ability of a select few who were able to overcome their fears. We will not be able to make positive change our society for the better or make new advances in science if we let our fear of the unknown get the better of us. The fear of the unknown can also make you deathly afraid of things that have little chance of actually happening. We humans tend to anticipate worst case scenarios even when there is little to no chance of those things happening. After 9/11 and with the help of propaganda, our society has become very fearful of terrorist attacks, meanwhile our chance of dying in such an attack is "roughly one in 2.7 million." It is unknown when a terrorist decides to attack and that scares us even though there is little chance of it affecting us.