I studied with a blind teacher from about 5 until I was 16 at two different schools. From the age of 12 until 16 I was in a boarding school-which I believe at that time was compulsory for blind children.
Obviously the facts are never just coming at you but are incorporated by an imagination that is formed by your previous experience. Memories of the past are not memories of facts but memories of your imaginings of the facts.
