It's actually quite hard problem to solve; even Larry Page acknowledged that like 10 years ago[1] and nobody is even close to solving it, not even Google. My opinion is that LLMs are good step towards answer machine type of search engine. Perhaps the ultimate search engine would be something like Elon Musk's Neuralink[2] brain-computer interface where chip implant could read your thoughts and know your feelings and based on that give you "perfect" results. That would be really personal, I mean like on another level of directly personal. Now all we have is indirect personalisation where search engine gathers everything it can about you and assumes what you would want to see.

[1] https://www.youtube.com/watch?v=mArrNRWQEso

[2] https://en.wikipedia.org/wiki/Neuralink