Consider this situation: I'm a regular person walking down a regular street with a regular brain. I think thoughts, and those thoughts are mine, they belong to me, there is no question of that fact. I have not developed any ability in my mind to differentiate the source of my thoughts, there is no reason to. If I think, if I hear or feel anything, it is either a sense or my thoughts. Like how a person who has never rode a bike cannot just start biking around with skill, I cannot just begin to...