Is there only 1 neurobiologic psychiatric disorder, with different clinical expressions?

From a thick volume to… a booklet?
Can you envision a day when psychiat­ric disorders are conceptualized as hav­ing a common genetic, neurobiological, and clinical core, with some variability in phenotype and behavior? If further brain research steers psychiatric nosology in that direction, we might end up with a DSM of 10 pages instead of almost 1,000, with an “Appendix” of genetic, neuroim­aging, and other emerging biomarkers.

Bold scientific prophecies often sound delusional—until they come true….