Jason Padgett has acquired savant syndrome – he became a mathematical genius after a vicious assault 12 years ago. Prior to being brutally attacked he had no aptitude for maths, but when he recovered from his injuries he began seeing the world very differently and drew what he was seeing. A physicist saw his drawings and helped him get traditional mathematics training to be able to describe in equations the complex geometry of his drawings. Jason Padgett's book is Struck by Genius: How a Brain Injury Made Me a Mathematical Marvel.