Its a little disingenuous to say that, most of us would have never gotten by with literally just a library catalog and encyclopedia. Needing a community to learn something in is needed to learn almost anything difficult and this has always been the case. That's not just about fundamentally difficult problems but also about simple misunderstandings.
If you don't have access to a community like that learning stuff in a technical field can be practically impossible. Having an llm to ask infinite silly/dumb/stupid questions can be super helpful and save you days of being stuck on silly things, even though it's not perfect.
Wait until you waste days down a hallucination-induced LLM rabbit hole.
> most of us would have never gotten by with literally just a library catalog and encyclopedia.
I meant the opposite, perhaps I phrased it poorly. Back in the day we would get by and learn new shit by looking for books on the topic and reading them (they have useful indices and tables of contents to zero in on what you need and not have to read the entire book). An encyclopedia was (is? Wikipedia anyone?) a good way to get an overview of a topic and the basics before diving into a more specialized book.