http://www.ted.com Daniel Tammet has linguistic, numerical and visual synesthesia -- meaning that his perception of words, numbers and colors are woven together into a new way of perceiving...
========== I'm a savant, or more precisely, a high-functioning autistic savant. It's a rare condition. And rarer still when accompanied, as in my case, by self-awareness and a mastery of language. Very often when I meet someone and they learn this about me, there's a certain kind of awkwardness. I can see it in their eyes. They want to ask me something. And in the end, quite often, the urge is stronger than they are and they blurt it out: "If I give you my date of birth, can you tell me what day of the week I was born on?" (Laughter) Or they mention cube roots or ask me to recite a long number or long text. I hope you'll forgive me if I don't perform a kind of one-man savant show for you today. I'm going to talk instead...