In the late 1970s, the first research into the new recognized phenomenon, change blindness began. According to [http://www.wikipedia.org/ Wikipedia], “change blindness is a normal phenomenon of the brain which show in light that the brain does not have a precise representation of the world but a lacunar one, made of partial detailsdetails” <ref>http://en.” (Change Blindness wikipedia.org/wiki)/Change_blindness</ref>. In spite of its name, change blindness does not have to do with a person’s eyes but in fact how the brain perceives information. Research in this phenomenon is still fairly new, however the research “suggests that the brain estimates the importance and usefulness of informations prior to deciding to store them or not. Another issue is that the brain cannot see a change happening to an element that it has not yet stored” (Change Blindness wiki). Many examples of change blindness can be found by simply searching on YouTube. An example of chance blindness on YouTube was a scenario where several people, one-at-a-time entered an office, we’ll call them candidates, and someone behind a counter, we’ll call them the employee, handed them a simple survey to fill in. Once the survey was completed and returned to the employee, the employee would duck behind the counter to file the survey. While the employee was ducked behind the counter, another employee would stand back up, in the same location as the first employee, and gave them a form and asked the candidate to walk down the hall. Once the candidate walked down the hall, someone asked them how many employees did they deal with at the counter. All the candidates said that they dealt with one employee. The person at the end of the hallway had to inform all the candidates that they were all incorrect and explained that the employees switched halfway through the survey process.