[yomly]

Have you ever tried to teach someone something physical before?

Maybe in the best case scenario you could have a multi-camera 4k, low latency setup. But how many students have the means and space to configure that?

For everyone else, the teacher loses the spontaneity to inspect subtle differences from various angles and what not. As a piano teacher you want to be able to flit between left/right hand, face, feet, shoulders, elbows, posture.

Maybe you could cover a lot of that with two very well positioned cameras on hands and body but that's really no substitute for the teacher being able to walk around observing the student. Let alone switching places and inviting the student to observe in a similar fashion.

I'm sure there are opportunities for remote teaching of instruments to actually do certain things better than in person (by taking advantage of technology) but there will never be a true substitute for in person teaching - telecommunication is simply too lossy