"There's a fair bit of talk about “Google Zero” at the moment: the day when website traffic referred from Google finally hits zero."
I am fairly convinced this day is not long.
"If the AI search result tells you everything you need, why would you ever visit the actual website?"
Because serious research consults sources. I think we will see a phase where we use LLM output with more focus on backing up everything with sources (e.g. like Perplexity). People will still come to your site, just not through Google Search anymore.