They are broadly correlated, yes, but you can absolutely spend 20 years learning nothing and 1 learning a lot. Do you think that the writer of this article has

They are broadly correlated, yes, but you can absolutely spend 20 years learning nothing and 1 learning a lot. Do you think that the writer of this article has not earned their title? If you didn't know about the number of years, would you still come to the same conclusion? Maybe another way of putting this is - leaving aside the word "senior," do you agree that the writer of this article has some skills that people new to the industry do not?