Question time!

[OAS]

I know you won't believe it, but I figured that one out before I had the answer in a class. It wasn't the same question, but similar. And the issue is blind people are unable to relate feel and shape to dimension if they regain sight. Conduct an experiment on yourself. Think of an object, close your eyes and trace out the object from memory on a piece of paper. You should come close to tracing it as it looks. If you know someone that is blind, ask them to try the same thing. It will look nothing like the objects actual shape.