Agree with this. LLMs are something akin to highly personalized interactive Wikipedia. It can get you 80% up-to-speed on a topic quickly but mastery takes lots of time. 

However there is a feedback loop involved: that is, the LLM gets you "off zero" which sets you on the road to master a subject. 

Case in point, over the last 3 months I've designed my first PCB with Kicad.  I did this literally by pasting back and forth screenshots into perplexity asking complete newbie questions like "is this correct way to place pull up resistors for I2C here..."

I AM NOT a master by any stretch of imagination, but without LLMs its doubtful I would've even attempted it as the entire learning curve both of learning new software + electronic design was all just a road too far for me to see any benefit from. LLMs close that gap....

freetx

It gets you closer to the frontier, faster, which I think is a good thing.  You still won't have deep understanding without practice and constant engagement, though.  Just my opinion.