Here's an interesting theory on Autism.
I don't know how likely it is, but it's fascinating to read none the less.
The Geek Syndrome
Autism - and its milder cousin Asperger's syndrome - is surging among the children of Silicon Valley. Are math-and-tech genes to blame?
By Steve Silberman
Nick is building a universe on his computer. He's already mapped out his first planet: an anvil-shaped world called Denthaim that is home to gnomes and gods, along with a three-gendered race known as kiman. As he tells me about his universe, Nick looks up at the ceiling, humming fragments of a melody over and over. "I'm thinking of making magic a form of quantum physics, but I haven't decided yet, actually," he explains. The music of his speech is pitched high, alternately poetic and pedantic - as if the soul of an Oxford don has been awkwardly reincarnated in the body of a chubby, rosy-cheeked boy from Silicon Valley. Nick is 11 years old.
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Asperger's notion of a continuum that embraces both smart, geeky kids like Nick and those with so-called classic or profound autism has been accepted by the medical establishment only in the last decade. Like most distinctions in the world of childhood developmental disorders, the line between classic autism and Asperger's syndrome is hazy, shifting with the state of diagnostic opinion. Autism was added to the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders in 1980, but Asperger's syndrome wasn't included as a separate disorder until the fourth edition in 1994. The taxonomy is further complicated by the fact that few if any people who have Asperger's syndrome will exhibit all of the behaviors listed in the DSM-IV. (The syn in syndrome derives from the same root as the syn in synchronicity - the word means that certain symptoms tend to cluster together, but all need not be present to make the diagnosis.) Though Asperger's syndrome is less disabling than "low-functioning" forms of autism, kids who have it suffer difficulties in the same areas as classically autistic children do: social interactions, motor skills, sensory processing, and a tendency toward repetitive behavior.
In the last 20 years, significant advances have been made in developing methods of behavioral training that help autistic children find ways to communicate. These techniques, however, require prodigious amounts of persistence, time, money, and love. Though more than half a century has passed since Kanner and Asperger first gave a name to autism, there is still no known cause, no miracle drug, and no cure.
And now, something dark and unsettling is happening in Silicon Valley.
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Clumsy and easily overwhelmed in the physical world, autistic minds soar in the virtual realms of mathematics, symbols, and code. Asperger compared the children in his clinic to calculating machines: "intelligent automata" - a metaphor employed by many autistic people themselves to describe their own rule-based, image-driven thought processes. In her autobiography, Thinking in Pictures, Grandin compares her mind to a VCR. When she hears the word dog, she mentally replays what she calls "videotapes" of various dogs that she's seen, to arrive at something close to the average person's abstract notion of the category that includes all dogs. This visual concreteness has been a boon to her work as a designer of more humane machinery for handling livestock. Grandin sees the machines in her head and sets them running, debugging as she goes. When the design in her mind does everything it's supposed to, she draws a blueprint of what she sees.
"In another age, these men would have been monks, developing new ink for printing presses. Suddenly, they're reproducing at a much higher rate."
More:
http://www.wired.com/wired/archive/9.12/aspergers_pr.html