Alright seriously guys this is some freaky ass shit. Turns out that all humans have a blind spot, and no I'm not talking about how we can't see behind our backs :p there is actually a blind spot right in front of us! It's absolutely crazy. To see your blind spot just close your left eye and look at the cross, but notice the circle without looking at it. Start from a distance and mover closer and closer keeping your right eye fixated on the cross. This is freaky as if you do it right!