That brings up an interesting quesiton - do you need a good memory to be "smart"? DO you need a good memory to do well in an IQ test (as far as they prove anything)? I'd say no.

I'm interested in AI though no expert, though would find it interesting to see an llm (until a "real" AI architecture can be created, ie that can learn on the fly and have more "real" intelligence) that:

Rather than being trained on billions on words, it instead has a grasp of logic, physics and spatial reasoning beyond any human, with little common knowledge, that could be fitted in a few billion parameters, that could then be run by a mobile phone.

Perhaps, for questions needing "knowledge" ie most of them, it would have well structured depots of knowledge it could quickly access to gain a quick understanding on a topic for a question (eg biology --> DNA structure for a highschool project), or C++ coding, then it can search the internet (with a list of "better" sources to try first).

SO, it would be like having an alien that has come to earth that is super intelligent, however know nothing/little of humans and the earth, and you ask it questions.

And it fits on your phone.

No idea if this would work.