My eyes see the world differently.  Most eyes see; curves, edges, drops, and surfaces separated by space.  My eyes envisage a world of flat unbroken plains, one surface leading on to another in a continuity of sameness.  Thus, my life has been one of drops and falls. Cups fall off the edge of table tops.  I trip over hazards that my eyes fail to register. I want to sketch my world.  The question is - How do you describe a two-dimensional world to people who live in three dimensions?