and yet, ostensibly, this is an objective result:

    A team of European researchers analysed the words in more than 12,000 English-language songs across the genres of rap, country, pop, R&B and rock from 1980 to 2020.

It's in Nature and open to peer review: https://www.nature.com/articles/s41598-024-55742-x

Regardless, it's hard to deny that PhD's today have been dumbed to a three minute music video level ( /s ):

https://www.youtube.com/watch?v=RoSYO3fApEc