Moonwalking with Einstein: The Art and Science of Remembering Everything

by Joshua Foer

Even though it’s described as a syndrome, savantism is not actually a recognized medical condition, and has no set of standard diagnostic criteria. However, Treffert divides savants into three informal categories. There are “splinter skill” savants who have memorized a single esoteric body of trivia, like Treffert’s young patient who can tell you the year and model of a vacuum cleaner just from its unique hum. A second group, which he calls “talented savants,” have developed a more general area of expertise, like drawing or music, which is remarkable only because it stands in such stark contrast to their disability. The third group, prodigious savants, have abilities that would be spectacular by any standard, even if they weren’t accompanied by handicaps in other areas.