in this study we demonstrate the pressing matter of exploring a possibledecrease in learning skills based on the preliminary results of our study.

A lot of news publications had been discussing this study as if they did not read it. Matter of fact let me put here a quotation from the FAQs of the study page:

Is it safe to say that LLMs are, in essence, making us “dumber”?

No! Please do not use the words like “stupid”, “dumb”, “brain rot”, “harm”, “damage”, and so on. It does a huge disservice to this work, as we did not use this vocabulary in the paper, especially if you are a journalist reporting on it.