Can you remember what you were doing on 15 March 2003? Or what the weather was like on 30 May 2007? Twenty-year-old British student Aurelien can. He is one of just a handful of people in the world who are baffling scientists with their ability to recall an incredible amount of their lives. Some claim they can remember every day as if it were yesterday. Now Aurelien is the first Briton to go public with this extraordinary talent. Is it an elaborate trick or some sort of obsessive compulsive behaviour, or perhaps the result of physical differences in their brains?