It is possible, there are people out there that can do it. Think of the guys that can remember numbers that have loads of digits...and there are famous people in history that could...I remember reading somewhere that someone who could remember everything always remembered the things as colours...
It's hard to believe that you (kroft) sort of know how to use decent grammar and interact on a forum. Perhaps your case is less severe. My brother, if he came on a forum, would be so lost to think of anything to type that wasn't completely off-subject.