The Guardian presents a fascinating look into the mind of the autistic savant:
Last year Tammet broke the European record for recalling pi, the mathematical constant, to the furthest decimal point. He found it easy, he says, because he didn’t even have to “think”. To him, pi isn’t an abstract set of digits; it’s a visual story, a film projected in front of his eyes. He learnt the number forwards and backwards and, last year, spent five hours recalling it in front of an adjudicator. He wanted to prove a point. “I memorised pi to 22,514 decimal places, and I am technically disabled. I just wanted to show people that disability needn’t get in the way.”
Daniel Tammet stands out from other autistic savants because of his ability to describe what’s going on inside his mind. Professor Allan Snyder of the Centre for the Mind at the Australian National University in Canberra theorizes that all human beings have the capacity to perform the kinds of mental feats associated with autistic savants. Savants are able to access these capabilities as a form of compensation for damage or malfunction elsewhere in the brain.