I think the author is confusing the members that currently make up the set of high-end jobs with the set itself. In 1995 I was writing HTML templating engines

I think the author is confusing the members that currently make up the set of high-end jobs with the set itself. In 1995 I was writing HTML templating engines and session management code. An HR person might have called me a "templating and session engineer." By that definition the role I was filling is now obsolete: standardized technologies have been developed that mean I will never find work as a templating and session engineer again. I am not crying about that development. The coming obsolescence of particular high-end jobs opens an opportunity for new high-end jobs. The world has fewer Unix admins per Unix server than it did fifteen years ago, and the world is better off for that. (Apropos the recent "Linux admin shortage looms" non-story recent posted here.) The author is perpetuating the same fallacious argument that wheelwrights were at the dawn of the age of automobiles.