Autistic savant

A genius explains – [excerpt]
“Daniel Tammet is an autistic savant. He can perform mind-boggling mathematical calculations at breakneck speeds. But unlike other savants, who can perform similar feats, Tammet can describe how he does it. He speaks seven languages and is even devising his own language. Now scientists are asking whether his exceptional abilities are the key to unlock the secrets of autism. ”

Interview by Richard Johnson – Saturday February 12, 2005 – The Guardian