To me, the short answer is we collectively stop learning.
I'll take the flip side of the argument and say AI allows humans to get back to raw, first-principals research and writing.
In many ways, middle men of literature (i.e. re-bloggers, article writers, etc) are moot. Groups who don't actually add value but have insane amount of ads on the page. This pushes people to actually write original content.
Is this perfect? no way. Is it dangerous? yes.
There are so many problems, but for better/worse, too many of us have changed the way we operate. It's here to stay.