My engineer brother sent me this link to an article in the IEEE (organization of electronic and electrical engineers) newsletter Spectrum: http://spectrum.ieee.org/dec06/4763
"Getting into other people’s heads requires empathy, a virtue that sometimes does not come naturally to engineers. Our profession tends toward the opposing mental disposition, called systemizing, which attends mainly to rule-based systems, such as those that govern machinery.
In October, we got a big response to an article, by Web Editor Philip E. Ross, on a new theory that links systemizing, engineers, and autism, a developmental disorder that has become more common in recent decades [see http://spectrum.ieee.org/oct06/4665 ]. "
BTW, the study referred to in the article is by Simon Baron-Cohen, cousin to Sacha.
My father, both grandfathers, one uncle, my brother, son, nephew are (or were) all engineers, and I probably should have become one, but that was only barely a career option for me, a woman, in the 60's. I expect most of us show autistic traits somewhere along the spectrum.
(It's amusing that the IEEE newsletter is called "Spectrum")