Such descriptions give rise to speculation: are judgment-laden adjectives like "intense" and "hardheaded" simply a way to describe traits that today might be categorized under juvenile behavioral disorder? A December, 2001, Wired magazine article titled "The Geek Syndrome" paints the portrait of several scientifically gifted children diagnosed with high-functioning autism or Asperger Syndrome. In many ways, the parental recollections recorded in the Wired article are eerily similar to the ones offered by Lippman. Even Stallman has indulged in psychiatric revisionism from time to time. During a 2000 profile for the Toronto Star, Stallman described himself to an interviewer as "borderline autistic,"See Judy Steed, Toronto Star, BUSINESS, (October 9, 2000): C03. His vision of free software and social cooperation stands in stark contrast to the isolated nature of his private life. A Glenn Gould-like eccentric, the Canadian pianist was similarly brilliant, articulate, and lonely. Stallman considers himself afflicted, to some degree, by autism: a condition that, he says, makes it difficult for him to interact with people. a description that goes a long way toward explaining a lifelong tendency toward social and emotional isolation and the equally lifelong effort to overcome it.

Such speculation benefits from the fast and loose nature of most so-called " behavioral disorders" nowadays, of course. As Steve Silberman, author of " The Geek Syndrome," notes, American psychiatrists have only recently come to accept Asperger Syndrome as a valid umbrella term covering a wide set of behavioral traits. The traits range from poor motor skills and poor socialization to high intelligence and an almost obsessive affinity for numbers, computers, and ordered systems.See Steve Silberman, "The Geek Syndrome," Wired (December, 2001). Reflecting on the broad nature of this umbrella, Stallman says its possible that, if born 40 years later, he might have merited just such a diagnosis. Then again, so would many of his computer-world colleagues.

"It's possible I could have had something like that," he says. "On the other hand, one of the aspects of that syndrome is difficulty following rhythms. I can dance. In fact, I love following the most complicated rhythms. It's not clear cut enough to know."

Chess, for one, rejects such attempts at back-diagnosis. "I never thought of him [as] having that sort of thing," he says. "He was just very unsocialized, but then, we all were."

Lippman, on the other hand, entertains the possibility. She recalls a few stories from her son's infancy, however, that provide fodder for speculation. A prominent symptom of autism is an oversensitivity to noises and colors, and Lippman recalls two anecdotes that stand out in this regard. "When Richard was an infant, we'd take him to the beach," she says. "He would start screaming two or three blocks before we reached the surf. It wasn't until the third time that we figured out what was going on: the sound of the surf was hurting his ears." She also recalls a similar screaming reaction in relation to color: "My mother had bright red hair, and every time she'd stoop down to pick him up, he'd let out a wail."

In recent years, Lippman says she has taken to reading books about autism and believes that such episodes were more than coincidental. "I do feel that Richard had some of the qualities of an autistic child," she says. "I regret that so little was known about autism back then."

Over time, however, Lippman says her son learned to adjust. By age seven, she says, her son had become fond of standing at the front window of subway trains, mapping out and memorizing the labyrinthian system of railroad tracks underneath the city. It was a hobby that relied on an ability to accommodate the loud noises that accompanied each train ride. "Only the initial noise seemed to bother him," says Lippman. "It was as if he got shocked by the sound but his nerves learned how to make the adjustment."

For the most part, Lippman recalls her son exhibiting the excitement, energy, and social skills of any normal boy. It wasn't until after a series of traumatic events battered the Stallman household, she says, that her son became introverted and emotionally distant.

The first traumatic event was the divorce of Alice and Daniel Stallman, Richard's father. Although Lippman says both she and her ex-husband tried to prepare their son for the blow, she says the blow was devastating nonetheless. "He sort of didn't pay attention when we first told him what was happening," Lippman recalls. "But the reality smacked him in the face when he and I moved into a new apartment. The first thing he said was, `Where's Dad's furniture?'"

For the next decade, Stallman would spend his weekdays at his mother's apartment in Manhattan and his weekends at his father's home in Queens. The shuttling back and forth gave him a chance to study a pair of contrasting parenting styles that, to this day, leaves Stallman firmly opposed to the idea of raising children himself. Speaking about his father, a World War II vet who passed away in early 2001, Stallman balances respect with anger. On one hand, there is the man whose moral commitment led him to learn French just so he could be more helpful to Allies when they'd finally come. On the other hand, there was the parent who always knew how to craft a put-down for cruel effect.Regrettably, I did not get a chance to interview Daniel Stallman for this book. During the early research for this book, Stallman informed me that his father suffered from Alzheimer's. When I resumed research in late 2001, I learned, sadly, that Daniel Stallman had died earlier in the year.