When my neighbor began having memory problems that were more than “senior moments,” she went to the doctor. Neurological tests showed that the problems she was having dated back to a time when she was a child. The doctors said that something had happened, perhaps at birth, that had prevented normal brain development. For almost 50 years her brain had found alternative neurological tracks that enabled her to live a full life, even though the tests suggested that she ought to have been dysfunctional or mentally handicapped. Yet she was a 50-year-old woman with a family, a graduate degree, and a brain that had perfected highly unconventional ways to cope with life.