Three posts earlier, an autistic savant Londoner recreated the eternal city from instant memory. This is about another savant Londoner (there are only 50 in the world)but very different. Unlike every other known autistic savant, Daniel Tammet is able to explain how his perceptions and how his mind works--giving researchers unique insights into his disease and extraordinary abilities.

Though the math genius says words are his second language, he's just written a book about himself. Born on a Blue Day: A Memoir of Asperger's and An Extraordinary Mind.

great article