>> So according to the Asperger contingent, focusing on a few activities, or just one, is a mental illness.
> You chose to ignore the requirement of "significant difficulties in social interaction". These are also not the only diagnostic criteria.
But much field experience shows that the absence of the full symptom set doesn't prevent the diagnosis, therefore the comparison is valid. During its tenure as a serious syndrome Asperger's diagnoses went completely out of control, due to ambiguous diagnostic criteria and (my point) how much like normal behavior the symptoms are.
Allen Frances, the editor of DSM-IV (the edition that introduced Asperger's), now thinks the inclusion of Asperger's was a mistake that led to what he now describes as a "phony epidemic" of diagnoses. Over the protests of many psychologists, Asperger's has been removed from the new DSM.
> There's in other words no contradiction between the positive treatment of grit vs. the description of Asperger syndrome as a disorder.
False. The contradiction is obvious -- they both describe the same behavior. And when it was pointed out that many very successful people exhibited Asperger's symptoms (or "Grit" symptoms, depending on one's outlook), psychologists responded by labeling those people mentally ill. As a result, Isaac Newton, Albert Einstein, Thomas Jefferson, and Bill Gates have been labeled mentally ill. The evidence? They accomplished something noteworthy by focusing their attention on a few activities, or just one.
But you're missing the point, which is that psychology proceeds based on descriptions, not explanations. Asperger's is a description without an explanation. "Grit" is a description without an explanation. Science requires explanations. This is why the DSM, psychiatry and psychology's central authority, is in the process of being abandoned as unscientific.
> There's in other words no contradiction between the positive treatment of grit vs. the description of Asperger syndrome as a disorder.
That's true, and it shows what's wrong with psychology -- its superficiality and willingness to accept mere descriptions in lieu of explanations.