I think I remember hearing/learning about everyone’s natural blindspot before, but I’m not sure. Either way, taking the Blindspot Test was pretty surprising to me just to notice that a blindspot exits. When you take the test, start in close to the screen and move away slowly. Also, if you are looking at the dot on the right, you need to cover your right eye. Conversely, if you are looking at the dot on the left, cover your left eye. You can learn more about the whys and how comes as well as finding out how big your blindspot is and where it’s located in your field of vision from the Mapping Your Blindspot article.