What do you see when you imagine an spinning apple? When your answer is a spinning apple you are lucky. Just recently there has been given the proper term for mind blind ness - congenital aphantasia.

Read here

http://www.sciencealert.com/there-s-a-reason-why-some-people-can-t-see-pictures-in-their-imagination

Do you have congenital aphantasia? Could you imagine having it?