A Facebook group post queried: Is it concerning that Kernberg would diagnose borderline personality and Kohut would diagnose narcissism? The post got many replies, most people indicating it was a concern about our diagnostic system or technology. My response was to highlight the difference was language and theory, not actually diagnosis. See more below! Heinz Kohut and Otto Kernberg were contemporaries in pushing forward the psychoanalytic frontier. They were both lauded, and