There are so few confirmed cases — perhaps 30 in the world – that plausible explanations are hard to come by. Take Orlando Serrell, a 44-year-old from Virginia who was hit on the head by a baseball as a boy, and later found he could do complicated calculations and remember the precise weather conditions of any given day of the year.
http://www.telegraph.co.uk/health/healthnews/9571922/Is-there-a-savant-inside-all-of-us.html
