Even still, wouldn't youvwant to separate X & Y are the same thing from X eventually progresses to Y.

I think the most obvious conclusion is not that the DSM is bunk, but that some of things it groups together might be better to group separately. The real question of course is which grouping corresponds better to the group responding the same way to a similar intervention. After all the point diagnosing is to put people into groups so we can learn from the patterns of similar people to figure out better treatments.

Fair point. I agree. If there’s structure in people, the DSM should capture it. MDD phase 1,2,3 would be a useful update.