You can ask LLMs questions about an immense variety of subjects, and they can give you customized explanations to those questions. It is as if an acquaintance of yours had digested Wikipedia and tens of thousands of books and had infinite patience to help you understand whatever you are curious about. And while the answers are not going to be picture perfect every time, just like Wikipedia or a well-educated acquaintance, they will be generally very useful.

I understand exactly what the Internet of the 90s did and did not do, because I was there to witness it myself. I had these same types of conversations with naysayers back then. Guess who was right?