>> The creation of these tools and their massive/universal adoption a la web-crawlers is still a large gap though.

It only takes a decade or so.

Consider people who are young children now in "first world nations". They will have always had LLM-based tools available and voice assistants you can ask natural language questions.

It will likely follow the same adoption curves as smartphones, only faster because of existing network effects.

If you have smartphone with a reasonably fast connection, you have access to LLM tools. The next generations of smartphones, tablets, laptops, and desktops will all have LLM tools built-in.

I do see what you mean, and don't totally disagree, but to extend your "smartphone" metaphor I see your hypothetical as akin to someone looking at a like an old school Motorola Razr and saying "in the future these will be ubiquitous". Not necessarily wrong, but not exactly right either. The implementation of personalized assistants could take lots of different flavors, and the ultimate usage pattern which is settled (to me) seems likely to be outside any of our current models.