When an architecture is based around world model building, then it is a casual outcome that similar concepts and things end up being stored in similar places. They overlap. As soon as your solution starts to get mathematically complex, you are departing from what the human brain does. Not saying that in some universe it might be possible to make a statistical intelligence, but when you go that direction you are straying away from the only existing intelligences that we know about. The human brain. So the best solutions will closely echo neuroscience.