> Is there any value to those lectures, nowadays? Absolutely. Even in the largest lectures, people can ask clarifying questions, live, from the subject matter

> Is there any value to those lectures, nowadays? Absolutely. Even in the largest lectures, people can ask clarifying questions, live, from the subject matter expert. Likewise, the professor can look at the students' body language and realize that they've lost a significant portion of the class, and stop, slow down, and maybe prompt the class for questions. There is an art to a good lecture, and it's definitely harder the larger the class, but good lectures cannot be replaced by recordings.