New educational method

So, on the topic of new methods of education, I want to give an example: video lectures. Many universites have begun to record their lectures and post them securely to their school website. This way, students who did not make it to class (be it sickness or another reason) can view the entire lecture as if they were actually there. Now, there are tons of arguments against this, the principal one being that students do not need to go to class. This is true, but if the students are learning, then where is the problem? For the objective of education is to educate the students. If they can view the entire lecture, then they can not miss any of the information. If a student is legitimately sick and can not make it to class, it is great to have access to the lecture and not be penalized for missing class. Students will still go to class, they will always do so. And if that is an issue, then here is an idea branching from video lectures: live video lectures. By this, I mean that the students can connect to a webcam, and view the lecture live, from their rooms. If the professor were to ask this student a question, the student would even be able to answer. Yes, this would be very difficult to do, but it is definitely possible, and is implemented in many business settings already, where video "conferences" are common.