One of the interesting things about the past is you particularly can't see. My son asked me this the other day, he said, "" Dad, can you remember what I was like when I was two? "" And I said, "" Yes. "" And he said, "" Why can't I? "" Isn't that extraordinary? You cannot remember what happened to you earlier than the age of two or three, which is great news for psychoanalysts, because otherwise they'd be out of a job.