It would be hard to do online courses for subjects that require a lot of physical tools for teaching, or loads of physical activity. Some examples are physics,

It would be hard to do online courses for subjects that require a lot of physical tools for teaching, or loads of physical activity. Some examples are physics, mechanical engineering, computer hardware design, dancing etc. But it might be useful promote online education more since it increases accessibility and affordability. > You have a direct connection to the professor and other students, which is essential for advanced material. You can ask the student to write down their questions and mail the professor. This way, a good professor can be shared by many more students. >How would undergraduates get exposed to research in your system? The professors can guide them to where interesting conversation happens on the Internet, and they can get exposed to interesting research there. >I forgot to mention the university environment. Being surrounded by my peers in the same field really helped. There is no law that this atmosphere of dense population of smart people should be limited to universities. By the way, I am agreeing to your central point, which is that online education should be a complement and not a substitute to conventional education.