Our eyes collect enormous amounts of data every second, but the brain filters much of it out. This filtering system helps us focus on what seems important.
The downside is that we often overlook details that are right in front of us.
This phenomenon is known as inattentional blindness.
A famous example involved participants watching people pass basketballs. While concentrating on the passes, many viewers completely missed a person in a gorilla suit walking across the screen.
The information was visible the entire time, but the brain filtered it out
