>The most depressing thing for me is the feeling that I simply cannot trust anything that has been written in the past 2 years or so and up until the day that I die
Do you think AI has changed that in any way? I remember the sea of excrement overtaking genuine human written content on the Internet around mid 2010s. It is around that time when Google stopped pretending they are a search company and focused on their primary business of advertising.
Before, at least they were trying to downrank all the crap "word aggregators". After, they stopped caring at all.
AI gives even better tools to page rank. Detection of AI generated content is not that bad.
So why don't we have "a new Google" emerge? Simple, because of the monopolistic practices Google did to make the barrier to entry huge. First, 99% of the content people want to search for is behind a login wall (Facebook, Instagram, twitter, YouTube), second almost all CDNs now implement "verify you are human" by default. Third, no one links to other sites. Ever! These 3 things mean a new Google is essentially impossible. Even duck duck go has thrown the towel and subscribed to Bing results.
It has nothing to do with AI, and everything to do with Google. In fact AI might give us the tools to better fight Google.