How important are conceptual boundaries?

Recently, a couple of interesting items about autism were posted. One was a NYT podcast, and the other was an opinion piece in STAT. Specifically, the unintended consequences of the movement from a categorical diagnostic model (Autistic Disorder and Asperger's Disorder) to a spectrum model (Autism Spectrum Disorder, aka ASD). https://youtu.be/eSwJmsHGrns?si=osfA8RHxkJ38lf2X In the NY Times … Continue reading How important are conceptual boundaries?