I'll be in that. As a child, afflicted by illness and surgery, I learned to read - my elder sister taught me while I was in a hospital bed - before I learned to talk.
Through childhood, school, being literate blended with being science oriented, being the child of an engineer, and changing schools every few years. I spilled out into an australian university in the sixties, unable to talk with other people and unaware that I had a problem. My IQ was / is 160+, but I've rarely known personal relationships. Unaware. That there was any difference, fundamentally, between me and any other human being.
I spent this afternoon with my son - he's mid twenties now, and beginning to contemplate an aspergers diagnosis. It's a lonely life we're condemned to, and there's not a lot around to make it any easier - either for us or for those who care about us.
Perhaps early diagnosis helps in that at least we can be with people we have something in common with, perhaps it harms in encouraging us to think of ourselves with disempowering models.
I can't tell. I've spoken with one or two early diagnosis cases and while I'm certain that a chance of avoiding some of the bite of that loneliness is worth taking, we haven't had enough success yet. But hell, I've been sure of the diagnosis for three years now, and I've only spoken with three other people who admit to aspergers?