I would say that most if not all subjects taught at the undergrad level can be implemented in online platforms. You can have in-person seminar courses for all the subjects that actually need hands on practice. Even in those situations, you can still have a significant impact by having simulations using AR/VR or similar. There is a lot of potential in this space that no one really taps into. I see some people doing x and others doing y. It is all good but there is no one doing a unified approach to this so it just ends up going no where. People want the whole picture, not bits and pieces.