By Dr. Francis Eberle
Recently I came across a familiar video I had not seen in a while. It has two teams, one in black shirts and the other in white shirts, passing basketballs to each other. As you watch it, you are asked to count the number of passes. Sounds easy, right? If you want to watch the original video, go here.
After you report how many passes you saw, you are asked if you saw the gorilla. And yes, during the video a gorilla strolls into the middle of the action, faces the camera and thumps his chest, and then walks away. When groups of people watched the video for the first time and were asked if they saw the gorilla, about 50% answered no. I have shown this video to groups and seen the same reaction.