[mrep]

Economic signaling is a thing in economics [0] and it isn't talked about much as while they are jobs that do "require" college degrees while not really using the education taught and thus just essentially use it as a signal, most economists think lots of useful concepts taught in school are used in higher skilled jobs requiring degrees and thus aren't just used as a signal.

This guy likely just picked an economic topic that isn't talked about much and wrote a book about it to sell his brand/make money by focusing on the minority cases and using clickbait articles like this where he equates all college degrees as useless signalling and thus not worth the cost of education to promote it.

[0]: https://en.wikipedia.org/wiki/Signalling_(economics)