It's pretty much over for the human-internet. Search was gamed, its usefulness has plummeted, so humans will increasingly ask their LLM of choice and that LLM will have been trained on the content of the internet.

So when someone wants to know something about the topic that my website is focused on, chances are it will not be the material from the website they see directly, but a summary of what the LLM learned from my website.

Ergo, if I want to get my message across I have to write for the LLM. It's the only reader that really matters and it is going to have its stylistic preferences (I suspect bland, corporate, factual, authoritative, avoiding controversy but this will be the new SEO).

We meatbags are not the audience.