Hey Doc, this is a rude and undermining comment that doesn’t contribute productively to discussion. Please consider the emotional and social impact of your words.
This piece was inspired by Ben Carson — since you can infer that, it was at least partially effective. And trust me, what seems obvious to you after reading a cogent, clear argument about it is not necessarily something that would have been obvious to you before, or that is obvious to everyone. Many many people make errors in logic related to this phenomenon. It is very well documented in social psychology. So your claim that it is obvious that expertise is not fungible…is not borne out by the data. Please keep dismissive and unsubstantive asides to yourself. Thanks!