Comment by latexr

> If it were true there would be no role for things like university lecturers.

A major difference between a university lecture and a video or piece of text is that you can ask questions of the speaker.

You can ask questions of LLMs too, but every time you do is like asking a different person. Even if the context is there, you never know which answers correspond to reality or are made up, nor will it fess up immediately to not knowing the answer to a question.