It's all a big fuzzy tug-o-war until we move away from symptom based cluster disorders and towards scientific, neurological based measures. Hopefully, NIMH's push in this direction will be a huge benefit in years to come.
Bingo.
There are frequently no bright lines anywhere when it comes to diagnostic criteria anyway-- in a
biochemical, functional sense.There's so little data there and it's so complicated that as of right now, I'm not sure that we
can define neurotypical as a quantitative construct to begin with-- not even with fairly well-studied conditions such as depression and ADD.