A debatable article by the Economist leads to various arguments, as follows:-
Doctoral degrees: The disposable academic | The Economist - http://ow.ly/3IJZN
In accordance to this, there are other articles may be of interest, such as:-
100 Reasons NOT to Go to Graduate School - http://ow.ly/3KOMk
Career Advice: We Ignore 'The Economist' - Inside Higher Ed - http://ow.ly/3KONJ
Of course, some arguments don’t really apply to subjects like science, technology & math.
Anyway, read the article with open minded. No right or wrong in this issue, follow your will.